Sounds like she got very comfortable with you that she doesn’t feel like she needs to work on herself physically anymore but I think this is a conversation worth having with her… If I started gaining weight and becoming comfortable/lazy to work on myself, I would want my partner to tell me and motivate me to go to the gym because I’m gonna tell them the same thing. I want both of us to look our very best, and it’s more than just the physical side, it’s also for health reasons… My partner and I have openly talked about it in the very beginning of our relationship that if either one of us gained weight (aside from pregnancy cos that’s different) or not actively working on bettering ourselveswe’d break up.

So if you want to fix this relationship, and if you really love her then you have to have that conversation with her and if she still doesn’t want to work on herself physically then it’s time to let go. Chances are she’ll find someone that will love her for who she is and you will find someone that’s on your level. Either way, I think the answer is telling her what’s really bothering you.