My fiance told me he hasn't been attracted to me since I gained weight

I put on 60 pounds during the pandemic. I’ve lost 15 and I am not at 145. My fiancé and I have been having a lot of problems lately. He finally tells me after 7 weeks being separated but living together that he has not been attracted to me for almost 3 years, since I put on weight. So my question is, do I leave him or try to work on things. I’m going to loose the weight regardless but is he worth staying with?

Girl please leave him. If he loved you he would not care if you gained weight. Leave & focus on yourself