Husband never attracted to me, spent a whole year bullying me, I asked for divorce and now he’s sincerely regretful. Idk whether to say or go

Married 15 years 3 kids. Husband settled for me, never made me feel beautiful or desired. But I loved him so much and we were compatible on all other levels. Year 10 of marriage he broke apart and said he regrets marrying me because of how ugly my body was. A whole year of bullying. I suggested he go see other women as ENM to maybe curb his desires. A year goes by and I’m done. I’m ready for divorce but he suddenly changed for the better and tried so so so so hard. But I wasn’t able to receive the love he gave. I’m now suggesting divorce again and he just left the house and said that he’s going away for a few weeks to clear his head and for me to clear my head and so maybe we can come to an understanding. I can see that he’s very sincere and his apologies, but I am unable to trust him and the spark that made us a couple is long gone for me. I don’t know what to do. I keep hearing and reading about stories of people who genuinely wanted to be better but they got divorced anyway and then they regretted it so much. I really don’t want to regret my divorce and I don’t know what to do.