Is this consider emotional/mental abuse or am I being dramatic?

TW: SH

I opened up to my ex bf (when we became friends again) about how I struggled with SH and how it was hard for me to stop. I also opened up about my experience of how I almost attempted. At a party I had he started screaming that he was going to hurt himself and take stuff and he started laughing about it and making hand gestures about hurting himself on his wrist and neck. I was crying begging him to not to and that is not worth and and he used my words against me from when I opened up about how hard it was for me to stop SH. Later he slammed a door and I went to open it and he was trying to choke himself with these fitness rings that hung from the ceiling. I ignored him after this as I was extremely hurt and I thought he would stop but he hasn’t. I believe he did this to pressure me into getting back together with him as I do not know what other reason he would have to act out at a party because he has not acted this way at other parties he’s been to (that I wasn’t there at). He sent me a message telling me how awful I am and how awful I was to him. He’s saying awful things about me to our mutual friends and trying to make them believe I am a horrible person. Now I question my reality and who I am as a person. I do not know what to believe, my friends tell me he’s manipulative and what he did was horrible but he’s telling me I am a horrible person. Some days I think I am a horrible person and other days I think I was right for removing him from my life. I do not know if what he did is mental or emotional abuse or if I am being dramatic and trying to exaggerate things. And if what I am experiencing now is due to what he’s done or if I am actually realizing who I am. I also do not know if I was right for removing him as he said I abandoned him when he needed me.