You get angry? why u angry? If your girl really love u, nothing to worry if she just talk to her friend or a little touch. You have to trust each other. You should know that all the girls in this world are having friends. Give her some freedom cos we can't make her happy all the times. She needs friend as well
I know she needs friends because we don't have ability to make her happy everytime but when love happen between 2 people it promote many problem as well

so u happy with ur gf or not it according to u and her ( not only u or only her ) . I think the best solution is to talk with ur gf face to face in truly way . Maybe next time she will cut donw her activity ( so close ) with her friends ( boy ) . It doesn't mean that u stop ur gf to contact with her friends
Just my Idea don't laugh