Who's Your Daddy

When, someone's baby is left out in the rain on my apartment complex doorstep I decide to take him in. Whoever put their baby out there only left two things, a birth certificate and an explanation. Even with my a devastating past, in college and working I take this kid in. I even take up another job just to support us both.
I grow very attached to the little guy, Bryant, so when his dad comes into the picture and steps up to the plate, what do I do?
... What do I do ...