Have you ever fall in love with your friend?
Did you confess to your friend ?
What happened after you confess?
Certainly it happens so often, as a result of rapprochement between friends. When I was young it happened to me, I fell in love with my girlfriend and I was afraid to clarify her. And when I broke it in that canceled our friendship ..
Therefore, it is better to expect the friend's reaction before you make it clear.