How to Get Him Interested Again?

ok so i've posted about this in a few places but everyone's been useless so i figured i'd ask my fellow gays since y'all probably have a better idea of gay dating than the straight people i've talked to!i've been talking to this guy since about october now(we spoke a couple times before but this is when it started getting serious) and our relationships been a rollercoaster to say the least.ok so it started on snapchat one night when he messaged me and we were having a conversation about a show we were both watching at the same time. things escalated and we ended up getting sexual(classy i know), then over time we started speaking more and more until eventually one night he told me he had feelings for me...at the time i didn't have any for him and wasn't really looking for a relationship so that's what i told him but we kept on speaking and eventually we just sorta started acting like we were together for some reason. we spoke almost 24/7 except when we couldn't and we would say 'love you' to each other etc. but i have no idea why bc i didn't feel much for him at this point, it was just one of those weird things that sorta just happens. he had been asking to meet me for a while but kept putting it off bc i wanted to get into shape first(i wasnt exactly fat, just average/slim but i was in the process of getting really fit so i wanted him to meet that version of me first rather than the average one), eventually we started arguing all the time and things went down from there. he would be easily agitated, paranoid, naggy etc. but he was also super clingy and needy, he was besotted with me and genuinely was catering to my every whim and would frantically apologise and mad text/call when i would hang up on him or something. not gonna lie, i started treating him like crap and made him feel like crap all the time, intentionally made him jealous just to piss him off etc. i was pretty mean, not sure why i even did it but i really regret it now. i took him for granted.anyway fast forward to late december and we had 'broken up' and 'gotten back together' about once every few days and eventually he just told him that he doesn't have feelings for me anymore. this shook me. all of a sudden i had started to realise what i had lost, how badly i treated him, and he was by no means perfect either but treating him like crap, making him jealous, not meeting him etc. were probably the most harmful things i did to us and if i had just met him and didn't treat him like crap im sure we'd still be together.since about january we've stayed quite close as friends, but ever since he told me that i've had romantic feelings for him and it's honestly killing me knowing that i threw away something that could've been really good all bc i was an absolute dick about it. we met once a chatted for a few mins but it was really awkward and quick, we were meant to meet officially a few days later but he cancelled after that..i just really wanna get him to love me again like he did before. i know u can't 'force' someone to love you but the point is, he loved me once and i was a dick and ruined it so surely i can get him to love me again. he's been on a date(which never worked out thankfully) and is probably speaking to other guys which honestly kills me thinking about it.what can i do to get out of the friend zone and back into his heart?? like i said, he was OBSESSED with me once so im sure it's possible, i just need to know how. i need to get him to see me in that way again, and it most likely has to be over text/xbox live(we literally spent hours and hours every day on there lol) but idk what i could do to get his romantic attention again.one mistake i made was probably right after he told me he didn't love me anymore we still just kept speaking as friends and then later that night he cried about the break up to me. if i had just stopped speaking to him for a while and gave him time to miss me he probably would've came crawling back. but instead, we kept talking every day and then i would be the one who started being obsessive and clingy and annoying, plus we got too comfortable with each other so it wasn't really exciting anymore. i've been advised to stop speaking for 30 days but we've been slowly not speaking as much anyway and drifting apart so it's not gonna do much good, if anything he'll just completely forget about me.ughhh i just really want him back so badly, i miss all the cute stuff we used to do and the things he used to say and how he treated me, i honestly just wish i didn't take it all for granted at the time and played it much better than i did before :(