LF coz I forgot the title

I'm looking for this particular yaoi manga where mc is in college and he has a bestfriend who had a girlfriend. He has feelings for him but since his bestfriend is straight, he keeps it a secret and mc lend his apartment to his bestfriend to have sex with his girlfriend. He meet seme who was his neighbor, I forgot how but everytime his bestfriend borrow his apartment, he'll go his neighbor to have sex with him.

This is all I remember, I hope someone knows this ╥﹏╥