one sided love dramas

hello guys ^^ 

I'm looking for dramas where a girl / guy has one sided love to another main lead for long time but get rejected and couple get toghter in end eps...

please don't recommen me playful kiss because I have watched it and also thanks for your suggestion ^^

Go Ho's Starry Night , a short drama fits perfectly what you are looking for. I really enjoyed it!
http://mydramalist.com/16921-go-hos-starry-night

I Will Teach You Love, Great, but it's a movie, not a drama.

The following have a similar theme but fit more losely, or the couple get together sooner than lately, or there are another themes that are more relevant to the story, etc.
Boss and Me (CH) 
Healer (The hero has a secret identity and his average alter ego is rejected by the girl who is atracted to the mistery man)
Protect the Boss
The Best Love
Another Oh Hae Young
Heartstrings
18 vs 29
A Gentleman's Dignity (Secondary couple)