LOL I at making descriptions, but here goes nothing

Park Chanyeol likes Lee Miyoung, no, he loves her. But, he can't date her. Why? Because his bestfriend, Byun Baekhyun has a crush on her too. Chanyeol knows how crazy Baekhyun is when they talk about her. 

And, sometimes it's better to let go someone you love. 

But, Chanyeol didn't know that she likes him too, until the day she confessed to him. But what can he do?  Well, easy, he ran away and forced Baekhyun to ask Miyoung out for a date.

Baekhyun and Miyoung finally fell in love with each other and dated. Everybody was happy. Chanyeol was happy, Miyoung was happy, Baekhyun was happy.

But... what happends if the situation turned 180º?