Cause I’ve Searched My Soul by Obsessivecompulsivereadr
http://archiveofourown.org/works/542597?view_full_work=true
Slash Kurt/Dave

Great, great story about Kurt and David. This follows after Valentine's day and Kurt finds out just how David feels about him. Kurt is tired of being second place and decides to break up with Blaine. He tells David he doesn't want him to be a rebound relationship so they need to take it slow. Then it just gets crazy. There is a lot of great buildup with the characters and some excellent reasons for their behavior. Kurt realizes that he doesn't have to settle for anything and David realizes that the growing up he did means he does deserve love. This story is funny, sad, angry, loving, it just has it all. There is one scene where Kurt is reading a note that Sebastian left begging him to take back Blaine because he never realized what a whiny shit he was I almost died laughing.