CuriousGumWad

It's called "where the heart leads" and I can't find it here if you have it please send the link

The uke feels unlovable and like everyone he loves leaves him eventually. The ukes brother dies when they're kids and his mother(maybe aunt) blamed him and said he should've died instead. At the start of the story the seme sees the uke on the roof of their school afterschool and the seme thinks he's about to jump so he rushes up there and plays it off as being a coincidence that the uke believes and then they become friends. The uke is in love with the seme during highschool but the seme looked like he was never interested in the uke (or they might've dated I don't remember that well). The seme grows up and turns out to have commitment issues and keeps having flings or dating for a bit then breaking up. The seme starts seeing the uke after all these years and stops having commitment issues. The uke works at the seme's company and intially doesn't want to date the seme for fear that he might get dumped or make the seme hate him. The seme eventually convinces the uke he's serious by introducing him to his grandfather and giving the uke a job being his grandfather's caretaker and having the uke move in with his grandfather. The graandfather gave the uke yellow candy.

I remember there was a flashback to the uke's ex where he said something along the lines "you really know how to make someone get sick of you" when breaking up with him.

The uke had blue-ish hair and the seme had brown-ish purple-ish hair. I'm pretty sure they don't have smut until the uke moves in with the grandfather.