My (22M boyfriend broke up with me (18F) because i didn’t want to have a threesome with his (38M) friend. What do I do now…?

for some backstory, me (18f) and my boyfriend (22m) had been seeing each-other on and off since september and finally decided to become a couple on new years. i tried my best to be upfront with him on the topic of sex and how i was a virgin and didn't want to rush into things and he seemed to be completely fine with it and was actually very comforting and thoughtful. i was under the assumption that we were on the same page and as we got more comfortable with each-other we began to take things slow.

all of the sudden last week, he told me that an old childhood friend (38m) of his had reached out to him out of the blue and was coming visit. i really thought nothing of it upfront until he began acting really weird and not like himself. he seemed really on edge and starting being really mean and almost aggressive which is nothing like him… every time i would try to address it he would yell at me or try to gaslight me and call me crazy and that i was just being delusional. i began to brush it off and thought for a second that it might actually just be me until he mentioned that the friend (38m) would be coming over to stay the night and that he wanted us to have a threesome. i told him that i'm not comfortable with that at all and that just the thought of it made me feel sick and he completely blew up on me and called me ugly, a tease, wh0re, and all kinds of other terrible things i dont think i can mention here and then told me to pack my shit and leave…

i ended up having to move back in with my mom and just begun seeing a therapist last week to talk about the trauma and try to process it in a positive way. she told me that it was likely he was… hurt by this man as a child and had developed a certain type of complex and personality disorder and that he had wanted me to fulfill some type of twisted fantasy.

i feel so sick now and don't know what to do. i loved him and i'm completely heartbroken. i thought we had a connection and he really felt like my soulmate.. i've never had the best self confidence and now i feel ugly and unlovable and like its all my fault. what makes it worse is that he wont stop blowing up my phone trying to get back together and lately i've been genuinely considering it…