To talk to my ex or not talk to my ex...

Okay as per my last post a loooong time ago, yes me and my ex broke up. I just recently have started the school year and it seems as if I see him everywhere I turn. I have been conflicted in this because I miss him even though deep down I have no reason to. He was toxic at times I'll admit. But all that aside, I still can't seem to get him off my mind. It's almost been seven months since the break up. I don't know what good it'd do to talk to him, in fact, it might just make things worse. He tried to give me back my stuff a couple weeks ago but of course it was on his terms and time so I got upset and we got in a pretty bad argument, like nothing has changed. I'm just so lost. My heart says I want him back but my mind says don't ever speak to him again. 😓 what should I do?