<human>: Pretty much what the title says. I am a 23 year old female who met my 28 year old boyfriend while still in college. He was my first real relationship, and it has continued for 3 years now.

When we met he was slightly chubby, but I had no problem with that at all. We moved in for the summer after 4 months of dating, and have continued living together since that time. At that time, when we first moved in together, he began to gain more weight. I almost didn't notice at first. Then I did and didn't like it, mostly for the health aspect. Finally, after 2 years, at Christmas he was 30 lbs overweight and still didn't seem to notice/care about his weight or its effect on me.

But now I find his weight unattractive. I don't really want to have sex with him when he looks like this, and by now I can't even remember what he used to look like when we first met. I'm afraid that this disgust towards his weight will bleed into how I treat him as a person. I'm worried that I'm simply not attracted to him anymore.

I've told him I didn't find his weight attractive, and I've tried everything to help him lose weight in a positive way. Still nothing. Is giving him an ultimatum going to help at all? Would asking him for a break be a good idea? I'm not sure what to do here!

Can you condense the text into a few key points?
<bot>: My boyfriend gained and has kept over 30 lbs starting shortly after we met. He shows no desire to lose it, and I no longer desire to have sex with him. What do?