Yaoi manga where seme walks into his best friend's room and accidentally sees his best fri...

Yaoi manga where seme walks into his best friend's room and accidentally sees his best friend jacking off and then he quickly leaves, but he can't get the image of his best friend out of his mind and that night, he went on a date with his girlfriend and he couldn't get it up because he was only thinking about his best friend and not the girl and the seme and his girlfriend breaks up because of that and then the seme goes back to the uke and kinda forces the uke into jacking off in front of him and the seme is actually very turned on by it so he asks the uke to masturbate in front of him from time to time. I think the uke begins to fall in love with the seme and one day, the uke asks the seme something like, "Are we dating?" and the seme replies with, "No, there's no reason to" or something like that and the uke gets mad and storms off and I can't remember much after that, but they do end up together in the end. The time of the story is set in high school and the uke has black hair while the seme has blonde(?) hair or any other hair color but black. Basically, his hair wasn't colored in.