I has a HS friend who was madly in love with some guy and it messed up her life real bad pretending she can just be his friend.
She was like some vampire thrall, it was heartbreaking to watch. Pretty sure she's still suffering from it. I wouldn't recommend deluding yourself that you can genuinely be friends with someone you're romantically attracted to. It is neither in your nor their best interest.
I wouldn't recommend deluding yourself that you can genuinely be friends with someone you're romantically attracted to.
Some people may be unable to handle that and should move on if it's a constant romantic craving that isn't reciprocated, but I still contend that other people can, do, and should enjoy having friendships even if they may have started as romantic gestures that weren't reciprocated.
To broad-brush declare it's impossible seems needlessly antagonistic.