I'm on the same boat as you bro. I'm with a girl, we both love each other yet all I do all fucking day is question her feelings because it all feels too unreal. I never got the girl I loved, and now I'm so concerned with when se will et tired of me that I barely enjoy our relationship, even if we go out on dates, kiss, cuddle and have sex. It just feels like a dream to me, I'm so afraid to wake up from. Idk why I'm like this and I will most probably lose her if she finds out how fucking insecure I am.