Liam, if I may, I suggest that any time you are invited out with someone and they wish to invite others, let them know how much you enjoy seeing them and prefer to do so one on one. Get used to new people and new places one at a time. I have moved across the US several times. The easiest way for me to find new people was work, neighbors, voluntarism and coffee shops. It's not easy, but you have a superb interior strength. You are growing into an even more incredible human being.