Yes nice Clare. The Beatles did indeed largely do pro-love songs, the early Beatles songs mostly around classic love themes and later Beatles songs mostly around hippie peace-love themes. But they did do a very few anti-love songs like Money which were mostly covers not written by them.
I suppose the few anti-love songs they did like Money were done for commercial reasons. A bit strange maybe since Love which may seem an anti-commercial idea has always been the biggest selling and most commercial theme for songs ?!
Here is a list of songs recorded by The Beatles ;
A Day In The Life - by Lennon/McCartney
A Hard Day's Night - by Lennon/McCartney
A Taste Of Honey - by Scott/Marlow
Across The Universe - by Lennon/McCartney
Act Naturally - by Morrison/Russell
All I've Got To Do - by Lennon/McCartney
All My Loving - by Lennon/McCartney
All Together Now - by Lennon/McCartney
All You Need Is Love - by Lennon/McCartney
And I Love Her - by Lennon/McCartney
And Your Bird Can Sing - by Lennon/McCartney
Anna (Go To Him) - by Alexander
Another Girl - by Lennon/McCartney
Any Time At All - by Lennon/McCartney
Ask Me Why - by Lennon/McCartney
Baby It's You - by David/Williams/Bacharach
Baby You're A Rich Man - by Lennon/McCartney
Baby's In Black - by Lennon/McCartney
Back In The U.S.S.R. - by Lennon/McCartney
Bad Boy - by Williams
Because - by Lennon/McCartney
Being For The Benefit Of Mr. Kite! - by Lennon/McCartney
Birthday - by Lennon/McCartney
Blackbird - by Lennon/McCartney
Blue Jay Way - by Harrison
Boys - by Dixon/Farrell
Can't Buy Me Love - by Lennon/McCartney
Carry That Weight - by Lennon/McCartney
Chains - by Goffin/King
Come Together - by Lennon/McCartney
Cry Baby Cry - by Lennon/McCartney
Day Tripper - by Lennon/McCartney
Dear Prudence - by Lennon/McCartney
Devil In Her Heart - by Drapkin
Dig A Pony - by Lennon/McCartney
Dig It - by Lennon/McCartney/Harrison/Starkey
Dizzy Miss Lizzy - by Williams
Do You Want To Know A Secret - by Lennon/McCartney
Doctor Robert - by Lennon/McCartney
Don't Bother Me - by Harrison
Don't Let Me Down - by Lennon/McCartney
Don't Pass Me By - by Starkey
Drive My Car - by Lennon/McCartney
Eight Days A Week - by Lennon/McCartney
Eleanor Rigby - by Lennon/McCartney
Every Little Thing - by Lennon/McCartney
Everybody's Got Something To Hide Except Me and My Monkey - by Lennon/McCartney
Everybody's Trying To Be My Baby - by Perkins
Fixing A Hole - by Lennon/McCartney
Flying - by Lennon/McCartney/Harrison/Starr
For No One - by Lennon/McCartney
For You Blue - by Harrison
From Me To You - by Lennon/McCartney
Get Back - by Lennon/McCartney
Getting Better - by Lennon/McCartney
Girl - by Lennon/McCartney
Glass Onion - by Lennon/McCartney
Golden Slumbers - by Lennon/McCartney
Good Day Sunshine - by Lennon/McCartney
Good Morning, Good Morning - by Lennon/McCartney
Good Night - by Lennon/McCartney
Got To Get You Into My Life - by Lennon/McCartney
Happiness Is A Warm Gun - by Lennon/McCartney
Hello Goodbye - by Lennon/McCartney
Help! - by Lennon/McCartney
Helter Skelter - by Lennon/McCartney
Her Majesty - by Lennon/McCartney
Here Comes The Sun - by Harrison
Here, There, And Everywhere - by Lennon/McCartney
Hey Bulldog - by Lennon/McCartney
Hey Jude - by Lennon/McCartney
Hold Me Tight - by Lennon/McCartney
Honey Don't - by Perkins
Honey Pie - by Lennon/McCartney
I Am The Walrus - by Lennon/McCartney
I Don't Want To Spoil The Party - by Lennon/McCartney
I Feel Fine - by Lennon/McCartney
I Me Mine - by Harrison
I Need You - by Harrison
I Saw Her Standing There - by Lennon/McCartney
I Should Have Known Better - by Lennon/McCartney
I Wanna Be Your Man - by Lennon/McCartney
I Want To Hold Your Hand - by Lennon/McCartney
I Want To Tell You - by Harrison
I Want You (She's So Heavy) - by Lennon/McCartney
I Will - by Lennon/McCartney
I'll Be Back - by Lennon/McCartney
I'll Cry Instead - by Lennon/McCartney
I'll Follow The Sun - by Lennon/McCartney
I'll Get You - by Lennon/McCartney
I'm A Loser - by Lennon/McCartney
I'm Down - by Lennon/McCartney
I'm Happy Just To Dance With You - by Lennon/McCartney
I'm Looking Through You - by Lennon/McCartney
I'm Only Sleeping - by Lennon/McCartney
I'm So Tired - by Lennon/McCartney
I've Got A Feeling - by Lennon/McCartney
I've Just Seen A Face - by Lennon/McCartney
I Call Your Name - by Lennon/McCartney
If I Fell - by Lennon/McCartney
If I Needed Someone - by Harrison
In My Life - by Lennon/McCartney
It Won't Be Long - by Lennon/McCartney
It's All Too Much - by Harrison
It's Only Love - by Lennon/McCartney
Julia - by Lennon/McCartney
Kansas City/Hey Hey Hey Hey - by Lieber/Stoller/Penniman
Komm, Gib Mir Deine Hand - by Lennon/McCartney
Lady Madonna - by Lennon/McCartney
Let It Be - by Lennon/McCartney
Little Child - by Lennon/McCartney
Long, Long, Long - by Harrison
Long Tall Sally Johnson/Penniman/Blackwell
Love Me Do - by Lennon/McCartney
Love You To - by Harrison
Lovely Rita - by Lennon/McCartney
Lucy In The Sky With Diamonds - by Lennon/McCartney
Maggie Mae - by Lennon/McCartney
Magical Mystery Tour - by Lennon/McCartney
Martha My Dear - by Lennon/McCartney
Matchbox - by Perkins
Maxwell's Silver Hammer - by Lennon/McCartney
Mean Mr. Mustard - by Lennon/McCartney
Michelle - by Lennon/McCartney
Misery - by Lennon/McCartney
Money - by Berry/Gordy/Bradford
Mother Nature's Son - by Lennon/McCartney
Mr. Moonlight - by Johnson
No Reply - by Lennon/McCartney
Norwegian Wood (This Bird Has Flown) - by Lennon/McCartney
Not A Second Time - by Wilson
Nowhere Man - by Lennon/McCartney
Ob-La-Di, Ob-La-Da - by Lennon/McCartney
Octopus's Garden - by Starkey
Oh! Darling - by Lennon/McCartney
Old Brown Shoe - by Harrison
One After 909 - by Lennon/McCartney
Only A Northern Song - by Harrison
P.S. I Love You - by Lennon/McCartney
Paperback Writer - by Lennon/McCartney
Penny Lane - by Lennon/McCartney
Piggies - by Harrison
Please Mr. Postman - by Holland
Please Please Me - by Lennon/McCartney
Polythene Pam - by Lennon/McCartney
Rain - by Lennon/McCartney
Revolution - by Lennon/McCartney
Revolution 1 - by Lennon/McCartney
Revolution 9 - by Lennon/McCartney
Rock And Roll Music - by Berry
Rocky Racoon - by Lennon/McCartney
Roll Over Beethoven - by Berry
Run For Your Life - by Lennon/McCartney
Savoy Truffle - by Harrison
Sexy Sadie - by Lennon/McCartney
Sgt. Pepper's Lonely Hearts Club Band - by Lennon/McCartney
Sgt. Pepper's Lonely Hearts Club Band (Reprise) - by Lennon/McCartney
She Came In Through The Bathroom Window - by Lennon/McCartney
She Loves You - by Lennon/McCartney
She Said, She Said - by Lennon/McCartney
She's A Woman - by Lennon/McCartney
She's Leaving Home - by Lennon/McCartney
Sie Liebt Dich - by Lennon/McCartney
Slow Down - by Williams
Something - by Harrison
Strawberry Fields Forever - by Lennon/McCartney
Sun King - by Lennon/McCartney
Taxman - by Harrison
Tell Me What You See - by Lennon/McCartney
Tell Me Why - by Lennon/McCartney
Thank You Girl - by Lennon/McCartney
The Ballad Of John & Yoko - by Lennon/McCartney
The Continuing Story of Bungalow Bill - by Lennon/McCartney
The End - by Lennon/McCartney
The Fool On The Hill - by Lennon/McCartney
The Inner Light - by Harrison
The Long And Winding Road - by Lennon/McCartney
The Night Before - by Lennon/McCartney
The Word - by Lennon/McCartney
There's A Place - by Lennon/McCartney
Things We Said Today - by Lennon/McCartney
Think For Yourself - by Harrison
This Boy - by Lennon/McCartney
Ticket To Ride - by Lennon/McCartney
Till There Was You - by Wilson
Tomorrow Never Knows - by Lennon/McCartney
Twist And Shout - by Medley/Russell
Two Of Us - by Lennon/McCartney
Wait - by Lennon/McCartney
We Can Work It Out - by Lennon/McCartney
What Goes On - by Lennon/McCartney/Starkey
What You're Doing - by Lennon/McCartney
When I Get Home - by Lennon/McCartney
When I'm Sixty-Four - by Lennon/McCartney
While My Guitar Gently Weeps - by Harrison
Why Don't We Do It In The Road? - by Lennon/McCartney
Wild Honey Pie - by Lennon/McCartney
With A Little Help From My Friends - by Lennon/McCartney
Within You, Without You - by Harrison
Words Of Love - by Holly
Yellow Submarine - by Lennon/McCartney
Yer Blues - by Lennon/McCartney
Yes It Is - by Lennon/McCartney
Yesterday - by Lennon/McCartney
You Can't Do That - by Lennon/McCartney
You Know My Name (Look Up The Number) - by Lennon/McCartney
You Really Got A Hold On Me - by W. Robinson
You Won't See Me - by Lennon/McCartney
Your Mother Should Know - by Lennon/McCartney
You're Going To Lose That Girl - by Lennon/McCartney
You've Got To Hide Your Love Away - by Lennon/McCartney
You Like Me Too Much - by Harrison
You Never Give Me Your Money - by Lennon/McCartney