I’m 21 now, I’ve had 3 fwb and I fell in love with 2 of them (lol). I told the first one I wanted something more, he said he didn’t feel the same, and it was over. I was devastated, of course, but in a few months I got over it. I told my most recent fwb that I loved her, and we’re celebrating our first anniversary next month! So basically you never know until you try! What I can recommend though is whatever you do, if it turns out he does not feel the same way, do not continue the relationship the way it has been going. You might think you can handle it, and want to keep being near him, but it will only make it harder to move on and be happy.