Need your thoughts about an ex situation

So I recently reached out to my ex from 5 years ago after struggling with losing the friendship we had. We've been texting through out the day and just catching up with one another. While I do still have feelings for him at this point I would settle for a friendship just to have him back in my life.

He admitted to asking about me occasionally and even said I was looking good and that he often wanted to hang out with me and our mutual friend again.(we were all more or less attached at the hip when we were together)...I really don't know how to take all that information but it does make me happy to know he hasn't forgotten me.

Only problem is I'm in a complicated long term relationship atm. I'm not completely happy with it due mostly to his manipulation and control issues. I came home tonight from my moms and he wouldn't talk to me and all my social media accounts have notifications on which I had muted. He questioned me about my snap score going up which was honestly due to me talking to the mutual friend. We were planning to meet up tomorrow morning. I know he knows about the contact with my ex but he wont confront me about it. And I'm sure he thinks the meeting tomorrow is a plot to see my ex...I feel just as bad as him now but he mentally and emotionally wont let me leave the relationship. I've tried to many times to count.

Any thoughts on this? Just needed a place to vent and get feed back. Am I just a terrible person? What would you have done?