Main lead likes main female who likes a support male?

A drama where the first main lead likes the main female but she likes the supporting/another main lead but ends up falling for the first one.

Boys Before Flowers Hana Yori Dango Me Too, Flower - is similar from what I remember, but it's been a while Buzzer Beat is the opposite of this - main male likes other girl My Name is Kim Sam Soon is also the opposite Playful Kiss - opposite

http://mydramalist.com/korean-drama/3570/gentlemans-dignity
http://mydramalist.com/korean-drama/152/a-love-to-kill
http://mydramalist.com/korean-drama/360/bad-love
http://mydramalist.com/korean-drama/239/biscuit-teacher-and-star-candy
http://mydramalist.com/taiwanese-drama/95/down-with-love
http://mydramalist.com/taiwanese-drama/1545/drunken-to-love-you
http://mydramalist.com/taiwanese-drama/161/miss-no-good
http://mydramalist.com/korean-drama/19/personal-taste
http://mydramalist.com/korean-drama/88/prosecutor-princess
http://mydramalist.com/korean-drama/100/take-care-of-the-young-lady

http://mydramalist.com/taiwanese-drama/42/devil-beside-you
http://mydramalist.com/korean-drama/96/why-why-love
http://mydramalist.com/korean-drama/1548/the-greatest-love

Apart from above mentioned, here r others! love keeps going; Gentle man's dignity; Queen of SOP (thz z exactly like ..what u described)