am i in a truamabond or something?? (HELP PLS!!!)

PLEASE READ!!!! IM BEGGING YOU, PLEASE!!!

helloooo people!! 

so i was in the relationship with a person (it was pretty good for the first latter of the relationship, but the last few months we were pretty horrible to each other) they broke up w me and the break up was HORRIBLE!!!!

i know, they had a right to be mad and upset about everything. but, i dont understand why they went around telling everyone what i did, they basically isolated me, etc.  

at one point after we broke up, they came to me asking to be friends again. i obviously said yes (i was fresh out of a break up, and depressed...i was looking for some form of happiness and my life back...) with my pent up feelings and such, my feelings came off too strong anf they cut everything off saying they were "done" and they "wanted nothing to do with me"

(disclaimer: they did this like 8th times within a year. ik it sounds silly, but i thought i deserved it and i deserved to get hurt. i was deeply depressed and in a long psychosis episode)

i honestly dont know what to do?? they arent good to me at all, and dont treat me as a friend whatsoever. and no matter how much they say they love or care abt me, they dont show it. 

i know their gonna come back in like a month or two, cause they always do so. and i dont know if this is a truamabond, a toxic attachment, or if the other party is just confused and trying to figure things out??

tldr; toxic(??) ex keeping coming back and its ruining my social life and mental health, send help what do i do?? 

advice is much appreciated, and thanks for reading!!!