Believe they have a private room if you have enough people to book it, we've been in there multiple times for various bday parties or out of town family comes into town and want to try it, but both the patio and inside are loud and noisy. It's going to be crowded, doesn't matter if you're inside or out. The front patio area is open seating, but may have changed since I haven't been in the past 6 months or so.
I haven't been to the Javiers in Newport in years, but that could be another choice, possibly less noisy? Drinks at Javiers then Mastros next door for dinner used to be a date night.