What are reasons why I can’t get off with my current partner?

I recently started seeing this great guy. He treats my kids like his own. We waited 3 months before having sex. Which was this past week. We had intercourse a few times now and He is getting mad because he can’t get me to squirt. Which is very weird because my past partner I was squirting alot. But he gets off twice in 5 minutes. Don’t get me wrong his sex is great.