I need help

I may have become emotionally attached to someone who I am used to seeing every single day. He is my boyfriend and my best friend. Recently I have had to spend less time with him because his mom accused me of trying to steal her adult son (my boyfriend) and he went with it. I am too emotionally attached. I had a mental breakdown when I couldn’t see him for a few days, now learning I won’t see him for the next few days due to work responsibilities at a new job, actually the job of my dreams, I think I might go insane. I have known attachment issues, and past mental health issues, but this whole thing has made me feel how I did before meds and therapy, when I had so much anxiety and hatred for myself because I’m just not good enough. I need help and I need someone to tell me it is ok to not be ok, and to stand up for myself.