Why can't my ex leave me alone. Should I cut him out of my life and how?

Anonymous
We were dating. We had sex three times& one day he stood me up to hang out with his playboy friend & a bunch of girls I was mad at him, I threw him with water in front of my mom, then again twice in front of my grandma. I found out from my brother that he has a new girlfriend. He didn't even talk to me at school or anything. So one day I was walking with my mom, he greeted us, I just gave him a dirty look. He texted asking if I'm mad him, we sorted things out and we were sort of friends again. We would text almost everyday until I asked him advice on a guy and he got mad. The next day I told him my friend was moving, he said he didn't give a fuck, I said he's toxic & he shouldn't talk to me. We blocked and unblocked each other a few times then he sends me a message "please leave me alone"I sent him a message back reminding him that he's the one who always talks to me first, that if he's ever unkind to me again I'd get a restraining order or kill him. We didn't talk for a while until he started getting close to my friend to get close to me, he used my brother as an excuse to talk to me. Then he just finds any other excuse talk to me, he even put his arm around me, I punched him&told him to leave me alone. He didn't talk to me at school again but when we got home I saw him at the tuck shop, he talked to my brother but then he starts talking to me & I tell him he shouldn't talk to me at school. He went silent for a while looked down & said I shouldn't talk to him at home& I said I don't to be associated with him as we walked away yesterday he came to our house but he didn't come in the yard. He said he went to our classroom where we hang out & my friend thought he was looking for me, I talked back but told him I don't want him talking to me at school. I'm acting this way because I keep getting dreams about him changing his ways, wanting me back because he loves me & only me but I'm just gonna end up hurt again.
Why can't my ex leave me alone. Should I cut him out of my life and how?
3 Opinion