why can’t i let him go

My boyfriend and I have been together for around 9 months. He does everything right and loves me so much but i just can’t help but always feel different. I don’t want to catch up with him often and it doesn’t excite me. He makes all the plans and half of the time i don’t even really want to do anything. But we call and we have so much fun and sometimes i just feel so in love with him and other times not. I don’t know if we are meant for each other. We were in a thing for a couple months about a year before we started dating. We stopped being friends but reconnected and i liked him for about 6 months before we started dating. It’s just crazy to me that this was all i wanted. I just wanted him to like me back so bad and be together and now that we are i just don’t know how i feel. Even remembering those feelings of how much i liked him before we dated, makes me want to say. I don’t know what to do. He is my main relationship in life. I currently feel like I am not that fond of people i am friends with anymore and am scared that if we break up i will lose him and regret it so badly. We have broken up a couple times because of it (for a day max) and I felt so broken and empty and alone. I don’t know what to do! Advice please x