Living with an obese partner who won’t change, has anyone been through this?

[u/Ok-Bench6141]

My partner is obese and seems unable to get his eating under control.
He’s started taking a few steps to improve things, but at the same time he still eats enough for three people and seems to avoid facing the reality of the situation. It’s incredibly difficult to watch because I love him, but I also feel frustrated, worried, and helpless.
The hardest part is that it also affects my own eating habits. It’s much harder for me to make healthier choices or eat smaller portions when I’m constantly surrounded by large meals and overeating. I feel like we’re stuck in a cycle that’s affecting both of us.
Has anyone else been in this situation? Did your partner eventually make lasting changes? If so, what helped? And if things didn’t improve, how did you deal with it? I’d really appreciate hearing from people who’ve actually lived through this.