Do I make a move?

Since 7th grade I have been friends with this guy. We have been super close and for the last how many years people always tell us we are as close as siblings. He was in a 3 year relationship where he wasn’t allowed to talk to or see me because his girlfriend didn’t like me. They broke up a few months ago and I was the first person he came to. We have been close again ever since. He stayed at my house one weekend and I realized that I may be starting to get real feelings for him. We were making breakfast together and singing Christmas music and I can’t stop thinking about a future with him but he’s my best friend. My roommates boyfriend decided that he was going to talk to him discretely and all he said was that he liked me but didn’t want to ruin our friendship.. I’m at a loss for what to do.. help!!