“I can't breathe when I see him with anyone else, I know this is unhealthy obsession and it's consuming me, even seeing him with his friends makes me feel like he doesn't want me. He loves me very well and I only want him to myself and to only love me, it's like I want to lock him in a room only I have the access to, how do I heal from this?”

Another soul answered...

What you’re feeling makes sense, and I’m glad you can name it. Wanting to be deeply loved is not wrong but trying to control where his love goes will eventually hurt both of you, even if he loves you very much. The goal isn’t to lock him away from the world rather it’s to build enough safety inside yourself that his friendships don’t feel like a threat. When the panic hits, pause before reacting and name “is this is jealousy/anxiety,” breathe, and ask yourself, What evidence do I actually have? Then tell him how you feel without accusing him may be put in words “I feel insecure when…, and I need reassurance,” rather than “You don’t want me.” Also start rebuilding your own life with friends, goals, movement, things that make you feel like a whole person outside the relationship. If these thoughts are consuming you or pushing you toward checking, controlling, or isolating him, please consider a therapist. That isn’t weakness it’s how you heal the part of you that believes love can disappear the moment he looks at someone else. You deserve a love that feels safe without needing a locked room. Remember communication makes your love come closer and builds trust. Excuse me if I said anything wrong. I was just trying to be positive.