Meetup with my girlfriend's friends

I saw my girlfriend and some of her friends from high school today. It was my second time meeting up with her friends. I was a lot less nervous seeing them than the first time. Most of the time, me and my girlfriend hang out just the two of us. We don't introduce each other to our family or friends as much as other people do. So for me, it was somewhat awkward for me to meet her friends at first. However, after getting to know them, I found that they were friendly and fun to talk to. One of the girls is hilarious, but also attentive that I felt that she tried to not make me feel neglected from the girls' talk, which I was grateful of. She graduated from a culinary school in New York, and has been living around the world. She is leaving for Singapore in a couple of weeks. Another friend in the group is a nurse, and she is going to the US to study nursing in a college. I want to be supportive the both of them and wish them great luck.