I feel like my marriage is over

We have been together 6 years, married for 1.5 year. We have a 10 month old. We had a really hard conversation last night about my weight. I am going to be honest about my weight gain. It isn’t like most of you guys on here posting about how your husband is being distant over 30 pounds. I have gained 160+ pounds. My mobility is being effected. I don’t leave the house. I don’t like doing anything because I am so insecure about how I look. I look different not only in my body, but my face is completely different as well. My hair, skin, nails are a mess. My hygiene isn’t the best although I’m really trying. I’m just so fucking depressed and feel stretched thin by other things going on in my life that are stressful. My husband opened up last night that he is concerned about my physical health but he is also no longer attracted to me. He closes his eyes a lot during sex and admitted he thinks of other people. I knew this was the case but this conversation really fucked with me bc I usually just ignore it and move on to avoid hurt feelings and fighting. While realistically, I know it makes complete sense because he’s in a relationship with a completely different person at this point. It still hurts. I don’t know how to move on from this and make the necessary changes because I feel so fucking awful about myself now. He really was not mean about how he said it and had tears in his eyes from concern. But how do I not get angry at him and actually care about my health??

Edit: I wanted to add I’ve been in therapy and on meds for the last 10 yrs. It has not helped unfortunately which is part of the reason I have no fucking clue what to do.