Reoccurring dream about my ex

So for some context I have an ex boyfriend from middle school, he was my first boyfriend and the one I lost my virginity to, (way too young I know I was stupid). But for the longest time I couldn’t get over him so for the next three years I was still weirdly obsessed with him. I met my now boyfriend who I’ve been dating for almost 2 years now, and I’ve gotten over my ex. But since we’ve been dating I’ve had the same kind of dream involving my ex boyfriend probably 10 times now and I just had one last night. it’s always me and him get in contact, meet up and hangout or get intimate, and then either my boyfriend finds out or I end up telling him and he rightfully gets mad or breakup with me. I never used to have dreams about him even when I was far from over him, and Im obviously very uncomfortable with having these dreams about someone I don’t want to even think about. Does anyone know what this could mean, or how to maybe stop these kinds of dreams?