Nice guy..BUT HE HAS A KID

So I've been dating this guy for about 8 months and everything this great we met at the local hospital in my town I wanted to do some volunteer work and to get it out the way I'm 19 and he's 25 not a big age difference

-sex

- good job (nurse)

-no baby mama drama

-own his own house

-and gives me attention(I'm spoiled)

-dinner dates ($$$)

But recently he's been talking about kids and how I feel about them in general I have 100% problems with kids I work with them in the hospital and I have yours siblings. He asked me if I was still a kid where would I wanna go I told him chicly cheese because I have never been there before and about a week later he hit me up and had a weird request to meet him at chicly cheese I thought it was just a corny thing he was dong and when I was walking to go sit next to hem I saw this little boy and my Body got a cold rush down my spine. I looked from the boy to my bf a few times and I put 2 and 2 together to find out he has a son I was a little shocked and 10% upset he didn't tell me this from the get go. We talked about it and the little boys son moved away and her new bf didn't want him around so she dumped him on to my bf It was a sad story but he asked me how I felt about the whole situation and in my head I'm saying I have no problem with it and I'm ok with it but those world had trouble coming out of my mouth and it made it seem like I had a problem with it to the point he got mad and left with his son and hasn't text me or call. Me in 6 days I left voicemails I went to his house sitting on the steps for hours and callings and text but not one word I would see him at work and he avoid me at all costs where he removed me as his shadow nurse. What should I do