What do i do!?

So i like this boy and I'm not sure whether he likes me back or not. We're already very close friends but recently we've drifted a bit, yet he still says he loves me & misses the way we were, we do flirt often and he calls me his girlfriend sometimes and even said that he's my future husband and that we're gonna have kids?! He doesn't know that I like him though. However, today he was saying that he's tired of being single and that he wants a girlfriend, he was asking me who he suits in my opinion. I'm just confused as to what I do!! Someone help please it will be much appreciated!!