I know 100% how you feel - to go from having everything to nothing is such a weird place to be. I split with my DP at the end of last year after 9 years together and I’m still struggling 8 months later.
He behaved appallingly - not for the first time - and I told him to get out and that he’d never set foot in my house again. He took me at my word and then had the cheek to act like the aggrieved party because obviously his nasty words and aggression were just “who he is” but me “dismissing him” was the real crime.
We didn’t speak for months, until I accidentally butt dialled him, which opened up a can of worms, ended with us sleeping together one night, then him backing off and saying he didn’t want to get back together.
I literally begged and pleaded with him, but tbh I think he just liked the power of knowing that he could have me without actually having to make any changes to his attitude or behaviour.
I also feel like there’s unfinished business and regularly feel the urge to reach out again, as I know he’s missing out on so much by not being with me - I have this feeling that one day he’ll realise and then he’ll show up when I’ve moved on and disrupt things for me. It’s torture. But maybe he’s just accepted it better than I have and he’s moved on already?
It’s almost like he’s died - we saw each other several times a week, texted every day, went on holidays and trips together - that’s all gone, and it hurts, that massive gap that’s left. I know he felt it too, but he filled it with hobbies and friends and work, and his kids.
I know that the reality of getting back with him would have been more nasty arguments, name calling, him kicking things and storming off, it was toxic. But when it wasn’t it was magical. I’ve had to start taking anti depressants to deal with it (I can tell they’re working as I’m not crying while typing this!)
I also think that you need to get under a new one to get over an old one, but I’m not quite ready for that yet. I know if I meet someone new I’ll transfer my affections fully and deeply to a new partner. But for now I’ll just have to sit with it and keep pushing on for myself. I hope you’re able to do the same 