a member

Me and my ex situationship have been on and off because of my ex reappearance in our life and 2 months ago after me and my ex situationship was going smoothly suddenly we had a major fight. It was about him smoking again when he promised that he won't touch cigarettes again. I got mad at the fact that when we were at the beach with our friends he hid with them to smoke and I got heart broken. He told me that I assumed him making the promise when he didn't even promised. And I never wanted to break us apart I just wanted an apology but he was prideful. A month ago he texted me drunk asking if we can try again and I told him to call me when he's not drunk. But he ghosted me. And up until now he's stalking my tiktoks. But I saw one of his repost abt falling inlove with your best friend. One of my girl friend is his bff and they are close. Should I move on? We are in the same circle of friends, I try so hard to ignore him. I even stopped hanging out with our friends. And I'm afraid I might have some grudge over the girl he likes. I do know what to do..