action buddies?

The same way you just did here. Let them know that these are things you enjoy doing and since they won't do them with you, you need a friend to hang with to do them. Your partner can't expect you to give up who you are and the things you enjoy just because she doesn't enjoy them. If they still don't trust you or throw a fit about it...I say, let them. Because at that point they would just be being spoiled an immature...go have fun with your friend : )