Yeah it's gonna be a no for me

So he saw the uncle once and assumed he was the dad of the kid. Then never again for weeks nor any sing of his presence in the apartment and saw him again with a woman after a couple of weeks. And was about to do what??? Confront him on the streets? A complete stranger?? And then didn't have the time so he went to the uke and first thing he said was "break up with him"? You never knew if he was dating anyone. You never asked wtf. You spent hours and hours with them but apparently never talked. About anything. And instead of assuming uncle was maybe the father and could have split from uke already (hence no signs of him living there) he just had to assume uncle was cheating????? Stupid ass character writing.