Regain love

everything was going perfectly fine. He is the best bf.He loves me so much. i love him a lot too. We were going really smooth until two days back I just felt weird and now it's like I don't have feelings. I know I like him but I can't feel it. He is being supportive about this. I know I can't live without him I don't know how to feel the love again. Met him. Didn't make much of a difference