Friend A introduced me to Friend B some time ago.
Friend B has emailed offering to pop over after DC2 is born (due next month) and I'm up for it as I'd like to chat/get to know her a bit better. Never been in her company without Friend A present.
Trouble is, I think Friend A will be miffed if I don't invite her at the same time. But if I do invite Friend A, the two of them will end up chatting at length about all their mutual friends/colleagues who I don't know and I'll have nothing to add to the conversation (been there before) and will sort of feel like I'm there to provide food/wine and listen politely.
So WIBU not to invite Friend A on this occasion, even though I know she'll be in a grump for a bit?
I've been in a similar situation where I've introduced two friends who really hit it off and ended up spending time together without me, and rather than sulk I sort of took silent credit for introducing two people who are still great mates to this day... But I know not everyone would feel like that.