One shot

Hi all, I'm looking for the title of this yaoi/shounen ai manga, it's either a one shot or part of a collection of one-shots. A boy is saved from dying on the streets from a man who collects strays. The boy has feelings for him but the father doesn't seem to reciprocate. The father's boyfriend tells him he needs to be more independent, so he decides to free himself from his feelings and go out late. The father runs after him and gets angry and they argue and the boy walks away. But then the father runs after him crying, and saying he can't live without him. Thanks for your help!