My uncle has a live in longtime girlfriend. They'd probably be married a long time ago but he and his wife never legally divorced because of money. They've been separated for a good 12-15 years.
His GF has a 17 year old son. He's been in the family since he was 8.
We only see each other only at Christmas and maybe 1-2 other times during the year. At get togethers there are five other cousins there and he's the youngest so we've never really talked talked.
Today we had lunch at my grandmas and we were the "kids" there. We spent the entire time [four hours@] hanging out anf talking. We went outside while my kid played, played games on my tablet, and he played the paino for a while. We talked the entire time. We exchanged numbers and added each other on FB. We texted for about an hour after we went home.
I'm not close with any of my cousins so Im not sure..is that appropriate? He seems like a cool kid. Im 23 if it matters at all.