Crushin bad

Okay so I'm going to college in the fall and met this amazing guy over the Facebook page. We have been "friends" for months and talk all the time whether it be snap or FaceTime. We always give each other advice (especially about relationships and feelings and those kind of situations ... even tho we're both single) and are there for each other. But... we've never met in person. He once told me that if I ever like someone, even if they're a friend, I need to be straightforward.. even if things aren't mutual. Then, try to get over them and move on because you can't force someone to like you.

I'm starting to have feelings for him. And idk if it's mutual.

But I don't want to lose a potentially awesome friendship that could maybe turn into something more.

Advice on what to do??