<human>: Could you distill the essence of the text into 1-3 sentences?

so i slept with a guy about 6 month ago, i told my boyfriend about a week after it happened, then that lead to fight then i broke up with him .... he verbally abused me for about a two week then basically stalked me and beg to get back together. this stalking last about 2 month then i thought stop the stalking and harassment i would just get back with. so i did. about two weeks ago i kissed another dude - it was totally out of the blue - then he found out and which means fighting, but thistime he will refuse to break up with me and if i break it with him the stalking and verbal abuse will happen again. i know what im doing is wrong.
<bot>: how can i break up with my boyfriend of about a year and a half and make sure he wont com back begging to get back together like he has done in past break ups***