He wont leave

I co-lease an apartment with my now ex boyfriend. We both agreed verbally to sever the lease so I went and put in my notice, gathered all the rest of my stuff (he had put some of it out after there was a situation where he wouldnt leave my room so i could get dressed) and surrendered my keys. He now is saying he’s not gonna leave. Don’t know why he’s going back on our agreement. I live in GA and I can’t do anything to sever the lease unless he agrees to leave or signs a roommate release. I had video evidence to show our landlords the verbal, emotional, and mental abuse; although they have given me support they say nothing can be done on their part till he makes a move. I thought the evidence of him literally putting my stuff out would be enough to get us both put out. He says he has a plan that’s cheaper for both of us. He won’t tell me what his “plan” is unless I either meet him face to face. Mind you, he is abusive so I told him the most im willing to do is talk on the phone although I don’t want that either. He says if I don’t talk to him he’ll continue to stay there and won’t let me off the lease and ill be expected to keep paying, or he’ll take me to court. He says neither him or I can afford a court battle and that (although he paid all the rent and i only paid the electric) he cannot afford to live there by himself..... Mind you, rent was nearly $1700 dollars and our first electric bill was close to $115.... So he can afford it but doesnt want to. Regardless, I cannot move forward because he continues to hold me back. I thought about letting him get evicted (if he doesn’t pay) and just paying whatever the apartment complex says is owed after or whatever he sues me for. I just want this to end. When I actually have agreed to a phone conversation; he calls and he uses the opportunity to say nothing about his plan, but to tell me how much he doesnt care about me and how he doesn’t wanna be tied to me. Him staying there and me paying for it is not an option. Its not cheaper, and it draws it out. I keep trying to work with him and he uses the opportunity to do nothing but insult me. When I ask that he tell me the plan it just makes him say more nasty things. Which makes me feel like there isn’t one and he just uses the time to say all the disrespectful stuff to me because he has the opportunity to. What can I do here?

Side note: Severing the lease would mean each of us pays at least $2400 total and we can stop all contact, be off of the lease by August. If he stays there, we’d be paying more than 9K per person and I would still be in this situation till next May. I don’t see a cheaper or quicker solution than that of Severance.