My girlfriend in college started getting fat. She always talked about how she "had a flat stomach in high school" and "could get that body back if she wanted to," and I'm like... so why don't you? Her excuse was that she felt too self-conscious in the gym to work out (yeah, I'm sure that's the only reason, and not that your only two hobbies are reading and snacking). Anyways, I broke things off not too long after. She kept growing, is officially fat now, and ended up dating a beta friend of hers. Bullet dodged.