..... have you ever thought that dealing with your issues depresses your girlfriends, they eat more to quell the anxiety or maybe even to discourage you,(subconciously), from wanting to have sex with them?LW1--I've been there, as have millions of other men. Your plight is hopeless. No matter what you say or how you say it, YOU are the bad guy.
Let's face it, she let herself go because she no longer has a reason to care about her appearance--she has you already. She is not looking anymore.
Get ready to hear : "If you REALLY loved me, it wouldn't matter..."
Or maybe they haven't really gained that much weight- but your fear of intimacy propels you to look for something "less perfect" on her as an excuse to break up and move on?