Took control, now not sure what to do

Dated a guy for 4 years lived together for 3. We were on verge of getting engaged. He dumped me, telling me he had no feelings because he had pinned all his mental issues on me. I also had A LOT of issues. But it was apparent his mental issues were taking control of him. I told him I still loved him but he said there was no way he could love me again. He moved out, his life has gotten worse and worse. He leaves to go to his parents for like 2 weeks, comes back, I’ve made huge leaps and bounds with my problems. He is impressed at how much better I’m doing. Tells me constantly how confident I’ve become and how much I’m making him laugh. The last day he came to pick up his stuff I told him I wanted to go no contact until Halloween, he agreed. He breaks the no contact multiple times to send me internet memes and invites me to the cinema with him. I go, not really knowing how important no contact is.

So we meet up on Halloween, I can’t take it. He’s trying to make a friendship work but my feelings are strong. So at the end of the night I tell him I never want to see him again, as I do not want to be friends. He’s floored, leaves to throw up, comes back, begs me to do a 6 months no contact. I ask him why? He says he doesn’t know but he needs to see me again. He says that once his mental problems calm down, he thinks he may want to date me again, or at least have a good friendship with me. I stupidly agree. He walks me home and says “So, January?” I say “that’s not 6 months” and he says “Okay, February” He says he’ll be in touch when he wants to end the no contact. Wake up the next day and feel sick. He has taken control. Everything is on his terms again. So I message him saying I change my mind and never want to see him again, and that I had met someone else. He replies:
“I’m not in the place to really be able to think about having any partner right now, as you know. I only really think in terms of wanting friends right now. So if you’d rather not talk or meet up or anything then that’s fine – sorry if it was painful to consider otherwise. I honestly don’t know how I’ll feel in the future and if you don’t want to wait around for that then it’s understandable. ”

I fully intend to contact him next year after this no contact. I know this way he’ll take the no contact seriously, and he won’t feel like he is in control. So what the hell am I going to say when the no contact is up? Should I just be honest? Pretend I changed my mind? Also what is my outlook with getting back with him?