How do i get my exboyfriend to want me back? he stright up ignores me!! it gets me so mad!!?

me and my boyfriend had a very strong relationship when we first started going out but it started to fade and we were just on and off he could never decide like one day it would be i love u the next it would be im not sure if we should go out but the whole time i was always in love with him and i would do whatever he wanted...like at random times he would ask to come over to my house i b like YES!! come over but when i ask him to come over he never does.....and a few days ago he asked about a tottally fake rumour about me being raped by my dad (WTF i know rite) and he was like i need to get to the bottom of this its important very important..... i must ask did u get raped by ur dad... does this means he cares about me or he just wants in the gossip? i was just like hell no and i explained y its not true then hes jus like ok then he doesnt ever reply back when i ask him who told him that? like ill reply back but he never replys back... and if i walk by him in the hall ill literally b walking rite nxt to him he just doesnt even give me a glance and wont talk to me soo any good ice breakers? i want to get back to gether with him cus i miss him like s*** snd i jus want him back soo any tips for geting him back... he didnt always be like this he just i guess changed sometimes i think i was just bootycall when he came over to my house cuz when he came over we usally had sex..please no judging