Hey Chiel. Sorry I missed all the drama. Honestly if your heart isn't in it anymore, don't go back. Move forward with your life. He's not willing to listen and respect you at all. You deserve better than this. It's a shame things haven't worked out, but I don't think going back to him is going to change anything. Especially if he's not making the effort to get you back.
Seems to me he doesn't care at all. If he wanted you back, he'd fight for you.
I don't know him or you very well, but it seems to me trying to make things work when he obviously doesn't want to is a one way street leading to more serious issues in future
It's up to you, but my advise is to leave him in the past and move forward. Of course it isn't easy it's better said than done, but I think you'll find that the heartache now is worth it in the long run, considering you'd just be miserable if you went back to him.