Why did my boyfriend cheat on me?

Some guys don't appreciate great women like you and I. They cheat because they're bored or they have some strange preference towards that erm, body type. There are people who like a woman with a bit of excess jiggle > <. Because you are younger than him and you've done many things for him, it kinda gives him this dominating feeling and they think because you're young, you'll stick around. Don't. Whatever you do, leave. You deserve better. Trust me, darling~