Tell her that she drove you to homosexuality. Maybe that will convince her to lose some weight.

call her fat and she will break up with you

you shouldn't.
I know you need to find your gf attractive, but it just feels wrong just giving up on her.
The thing you should do, try to make her aware, and start working out WITH her.

if you don't want to do this, then just break up like normal.

Don't try to change a person. If you don't like them the way they are, then it's time to move on. I understand that you don't want to hurt her feelings, but in my opinion part of being a man sometimes involves being a jerk.

Physical attraction is one of the foundational parts of a relationship. If you dont have it, its a wonder how they are staying together.

Be sincere. It hurts, but you're not lying and she isn't a kid.

Tell her the truth. First of all, she hid her appearance. She lied to you first. That was her doing. Not yours. I'm not saying be a total ass. But you can't be hiding behind fake smiles and laughter. This will just get worse. Either help her lose the weight. Or just end it there.

Tell her the truth you like her character but your dick doesnt like her body. And there is nothing you can do about it,

If she's as fat as the woman from Identity Thief then she seriously needs to lose weight. It's not like you're being mean to her, it's an actual health risk. Just be straight up with her. Tell her you are worried about her health and that you are willing to help her out with her weight loss by training with her eating right together etc. If she takes takes it the wrong way and breaks up with you...well then I guess it wouldn't matter cause you wanted to break up with her in the first place lol

QFT