r/u_Early-Somewhere-7410

So I just found out that my bf of 5 months cheated with me. He had been in a long distance relationship with a girl for 2 years. When I asked him if he had been with someone before me he denied it completely and he acted like I was his first in everything. He wrote poems for me. But it turns out he wrote poems for that girl too he called me the same names he called her and told me the same things he had told her. He had been sexting with her while being with me. Whenever I get suspicious and ask if he’s cheating on me he would get offended and hurt, he would swear that he’s so loyal I’m the only person he could think of in that way. He would make me feel guilty for doubting him. So when I found about this girl I called her from his phone and turns out she had no clue I existed she thought he was loyal cuz you see he said the same things to us then she asked him whom does he actually love and choose he said he chooses me and only used her for her money. This girl is 3 yrs older than him and apparently has been giving him pocket money online (it was a very tiny amount and it was on and off). He explained it to me that he only sexted her and all that for her money to make her believe. He said he had loved her at first but after that he did not. He’s saying I’m his everything now and he would die without me. That girl cursed him to death and told him to fuck off. I told him I don’t want him either cuz he lied about everything throughout our relationship I loved him with everything in me I gave him everything I could the betrayal is too much to take in idk what to do I feel like going crazy. Now this man cut his hand drank harpic and is telling me that he would die without me he’s begging me to give him a second chance saying he deserves it. He accepts that all he did was wrong and he was dishonest throughout our relationship. But he still claims to have me loved the whole time. I just want him to accept that he never loved me. I feel like it’s just obsession and lust. What should I do now?