Please help me find this yaoi

What i remember is that the ML doesnt want to be confined to a relationship at the start, so he makes an agreement with a girl to be f buddies while theyre in school (takes place in uni). But then he meets the MC like early on in the beginning of the year and actually wants a relationship with him. There's a short arc where ML tries to hide that hes an f boy from MC and tries to hide the fact he made a f buddy agreement with the girl (this is towards the end of the story after the mc and ml get together).

Pls help me find this. I cannot remember the name at all!