Purple, Green or Blue

I am confused! I love purple but it's too girlish. Blue has cooling effect but it won't feel like the room belongs to a couple. It's going to be more of a boy's room. And so from here that I pick the shade of green. I hope it won't feel too dark though. Green belongs to the cool hues therefore it will be a good color for a bedroom. Since it's main purpose is to make a person relax.
We'll see the outcome soon! positive sana!!!