In the J-drama
Piece, the main character's female classmate ends up confessing her love to her. It is one-sided but I thought that the way they dealt with the confession and Mizuho (the main character)'s reaction and acknowledgement of it was excellent.
Slightly unrelated but I'm just finishing up Coffee Prince and, even though it isn't a gay relationship because Eun Chan is really a girl pretending to be a guy so she can work at Coffee Prince, the emotional turmoil and, finally, acceptance that Han Kyul experiences when he thinks that he is gay was very well presented. I also appreciated the other characters in the drama telling him that it didn't matter if Eun Chan was a guy, that it would still be fine. Han Kyul was prepared to be judged by society and his family but he didn't care because he loved Eun Chan.