My Fiance committed suicide. Am i to blame?

My situation makes my mind so fucked up. I (26F) been with my Fiance (23M) for almost 2 years. Were in long distance relationship and we saw each other in person twice. The start of our relationship was pretty good. We dont have any awkward stages, we clicked immediately. We didnt fight for almost half a year too. it was going too well. My friends, His friends, My family and his family liked us. Until i found out he was dating trans men and gays before he met me. i didnt know what to feel at that point but i've supported him eventually because he promised me he just did it "to experiment" with his sexuality. i wasnt upset with him or we didnt had a fight when i found out. I did actually comforted him because he was crying histerically and shaking while apologizing. he didnt think i will find out and he said he felt embarassed. months passed, still, were happy no fighting no arguments. until i found out again he was cheating on me with a trans and even admitted that he was playing with himself while on facetime with me and talking to her. I also found out later on its almost a hundred of trans and gays he had a fling and dated in the past based on his social media accounts that he deleted all the messages after. i became furious. i think that was our first and huge fight. because i felt played. i was about to break up with him but threatened me that he will suicide if i leave him and even wrote a suicide note so his family can see why he did it and sent it to me so i can see it. one of the things i'll never forget was "im doing this because of you and only you" "You want someone that will make you happy and youre saying im not that person" "i love you so deeply" i dont want him to do it obviously and i forgive him. he was like a radio, he was ok immediately while im still hurting and drained for days thinking about it. He shower me with gifts and money like a lot. but i wasnt happy as before. months past again, i have a gut feeling he was cheating on me again because i can hear notifications from a phone. keep in mind, this guy share screen his phone THE WHOLE TIME while were on a call because he said he wanted me to be comfortable and he wanted to gain my trust again. it was prettty odd but in my mind its the thought that counts. i lied to him i hacked his phone and computer and this guy actually believed it and confessed he was talking to strangers online the whole time of our relationship on his secret second phone. he destroyed his secret second phone with a hammer while talking to me and ask me if i feel better. i told him no and it wasnt enough because my trust was also broken too and i wanna leave. he then proceed to hit the wall and hurt himself and again, i fell for it and forgive him. but im not the same anymore, i became toxic to him for the last few months saying hes "useless piece of shit" "Gay cunt" etc or even joke around im gonna hacked his bank. he said he understand my actions and he will do everything to make it right because he doesnt want me to leave, things have been ok for awhile. he ask me to be his fiance and weve been nonstop planning about our wedding in our country. he booked the ticket (his 2nd visit) and while hes in the shower (he's already in my country this time) i found out again he has been talking to another gay and he is using a dating site days before he came here, we fought and i slapped him multiple times and he push me to the wall and choked me so hard until i passed out. i woke up in a few minutes and saw him crying and apologizing and saying what have he done. i was about to leave and pinned me down to the bed and i was screaming for help. the police came because they said the rooms next doors heard us and my fiance doesnt want me to talk to them and he spoke to the police saying were just playing games. i was delayed too with my period and i told him i might be pregnant. he pressed my stomach so hard (imagine trying to save a person from choking in a cartoon) that i cried in pain. he said it will kill the baby and i tol him, what makes him think i wanted to kill the baby and again we fought. when he went home im still not on my period and still angry at him but not to the point were gone have an argument. like irritated-angry and i told him casually that if ever im pregnant and our baby dies or will be born with problems i will never forgive him and will expose him. he tried to take his life again by thinking of jumping into the lake and again i cried and begged him to come home. (thank god i wasnt pregnant) but the situation was still worse, i became depressed, toxic and irratable during the last few months of 2024. im even taking anti depressants and crying all of a sudden. i reached out to my friends again (he doesnt want me to hang out with them before) and i focused on my self. i developed this confidence that i can walk out the door from him if he didnt change and i wasnt really focusing on him anymore. i started posting myself again,hanging out with my friends and i felt happy. i also spoke to this guy friend that i knew from childhood and im starting to like him. i openly spoke to my fiance about it and he wasnt having it. we had an argument for days from crying, to insulting each other and shouting to each other and that last night i told him i wanna break up. he's not listening to me and pretended like nothing is happening and were not breaking up. he even gave me money and sent it to my account and i sarcastically told him "what am i gonna do with this?" "spend it with my new guy?" he told me "he's gonna go" and didnt say he's gonna suicide ot hurt himself. its just eeree silent. i thought he was just giving me a silent treatment and i ended the call. but i have a bad feeling about that night like i was about to get sick. i checked his bedroom camera (he gave me access) and i heard like someone was trying to wake him up. his brother threatned to kill me and find me. its like a neverend of pain im feeling right now. im starting to think like is it really my fault? im still sad until now. it shouldnt end this way. definitely not the ending i was expecting. i wish he was still alive. now im regretting how i became so cold and toxic to him before. I hope youre in heaven D. you hurted me alot. i still love you because i still cherish the good things you did and good memories we made.