How to forget someone ?!

How to get over someone you been with for so long so me and my husband have been married almost two years now we dated for four years before marriage. I will separate myself from him because since we got married he barely satisfys me sexually to the point that I hate my life I’m always in a bad mood and depressed over this because I never imagined being in a situation like this at the beginning it was all perfect we were the perfect couple we had sex all the time he ate me out we did different positions he told me he loved me he hugged me cuddled with me but now doesn’t he barely does. I’ve gotten to feel resentment towards him and feel like I love him at the same time for him rejecting me sexually a few times in the past. He is not cheating he only works and comes home I’ve checked everything and nothing. We have sex he cums fast and sometimes he keeps going after he cums but doesn’t eat me out and I’ve told him he is selfish. I barely get horny enough when I’m with him anymore I hate how our relationship and marriage was made public now I need to feel embarrassed 😞 over getting separated I’m heartbroken 💔 and won’t make another relationship or marriage public again. I ve told him that he is dead to me for the way he has hurt me I had so many plans for us of us being happy and together for ever. But I’ve told him that he needs to understand that I’m a women and I need pleasure. During sex I get wet but I’ve gotten to resent him so much that I barely feel enough pleasure and my mind wonders. I’ve told him he ruined my life as a women and that I can’t be happy as other women because of him and he just says that he understands that I need my happiness. We love together so he says he will move out. He says he will find an apartment and I honestly want to move too out of state so I could see if maybe I could forget easier guys because I really got to love him a lot he was my longest relationship. He was one of the men that I got to love the most. He doesn’t want couples therapy or sex therapy and he hasn’t wanted to take medication either.