He's OK for me..?

He's perfect for me,
But i'm not perfect for him..

wat should i do?..my friends tells me that i love him..but i'm not sure of that anymore,...but still i have this feelings for him..like

want to hold him..like that..

Before we were on, and off ,on and off..for 3 or 4 times..God i don't even know what does he wants?!!..

i'v already changed me for him..but still!!..

i don't know what is the problem?...

IS the problem of me becoming lil fat.,,
or is it his problem ?..

If you're not sure, you don't. You'll KNOW if you love someone.
Firstly: Don't change for someone if you want the relationship to be genuine.
Secondly: If he dislikes you for being overweight, he's not worth it.
And thirdly: If you don't know the problem, it's probably something tiny.x