Kaylz
Glad to see that you got to go to the park, thats a plus, possibly you cant expect to set the world alight on your first visit to that group of people, it may get better.
I have a friend who keeps his girlfriend and a group of his mates seperate, especially when clubbing is involved, this is because he likes to do certain things that his girlfriend doesn't, like stay up all night getting absolutely trousered. ( off his noodle). Could this be why you dont get invited clubbing?