Dreams of my ex

After I got married I've been having dreams of my ex, and it's of me telling him I'm married to the guy I met after him. My ex and I were dating for a long time and we ended not so great terms but tried to be friends and it never seemed to work out as well. But recently I've been having more and more dreams of him, whether it's me telling him im married or me trying to get back with him. I feel so guilty cause they're making me feel like I'm cheating on my husband or betraying him. I just hate how its been happening so much that it's making think what if? Or I'm having urged to talk to him. Idk if it's because He was my first that I'm always gonna have feelings for or if it's me trying to find closure. Idk how to settle something you can't control and talk to someone you shouldn't