I hate when guys do this! They lead you on and then they have time to "think" and regret it and then they tell u oh just move on as if its soo easy how can u do that to someone? My best advice is damn girl know you are better than him. And know that you are the only who was there or him and truely loved him. Its his loss forsure! Time will heal I know it hurts you will cry soo much to the point where your body hurts. In the end you will smile and realize that if someone treats you like that then its not the right one! You deserve to be treated like a queen and you deserve to be faught for if he didnt then him :) and im done :)
Love shouldn't hurt let your ex become an example of what you shouldn't have in the future & all the hurt hes cause going back to him will reopen the wounds. Prove that you are strong you dont need him in your life
you probably still have feelings for him and ur just imagining him looking at you so much or he still has feelings for you. so i suggest you wait it out for a bit and see what else happens :] hope this helps.