Keen - don't worry, you don't have to act any other way than how you feel in here, and I think giving your friend a bit of distance at the moment is very sensible. We have friends over last night for dinner with their 2 bubs and I said to DH when they left, don't you feel like we are getting left behind, it's like everyone is a member of this exclusive club and we're not. We are still getting those, "you'll understand when you have children" comments, which drive me insane.

Trying to "get over it" is useless to, you deal with it how you want/can and tell them to bugger off. I really hope things fix for you soon.