Help me find this Manga

I'm looking for a Manga. When I remember correctly it's a yaoi but could also be Shonen Ai.
It's about too boys who start there relationship while both of them are still in school. And I remember that the story continues about one of them finishing school and moving into his own apartment. And then they start drifting apart from each other because now there not together like bevor and this new situation is difficult for both. On of them gets jealous of his new friends and is anxious about a girl he gets friendly with hoping he doesn't want to end there relationship.
Really hope someone knows this...thanks