urghhh I seem to can't catch a break ..

Okay I've been kicking it with a friend of mine we flirt we haven't had sex in years ... but we recently reconnected but nothing major has happened just a few dates etc ... today we are talking and he's like I have to tell you something I said what🙄😒 he goes I just found out my sons mom is pregnant 🤰🏽 with my daughter I wanted to just hang up but I didn't I simply said how are u just finding out he then tells me she didn't m is till she was 4 months and then tells me last month 😒 crazy rite. I wanted to scream but this is why my last relationship didn't work because my ex had a child on the way. I have no idea what to do should I walk away now before my feels get deeper in or should I just go with the flow because we even have a Cancun trip coming up he says nothing is going to change but that's a baby 👶 everything changes