I don’t know what to do...😥

I’ve been feeling very lonely and unwanted. I am no longer sure about the boyfriend I’ve been with for 4 years. I wonder if he’s sensed anything off about me. I want care and attention and I can’t ask for it or else I will be called controlling. I find he’s nothing like me. I always try to reach out for him but he does the opposite. He’ll text me back once and won’t answer for hours. And if I don’t answer for hours, he won’t reach out anyway. I don’t know what to do. I feel so sad. There’s so much pain in my heart. I’m scared to admit maybe it’s time to move on ...💔