I've arranged to meet an old friend that I haven't seen in over a year. We're going for a meal and a catch up and I've been really looking forward to it. However, she's just texted me to say that a colleague of her's has been dying to try the restaurant we're going to so would I mind if she came along as well. I do bloody mind. I've never met this person and the whole purpose of the meeting was to catch up with my friend that I haven't seen in ages and probably won't see for ages again (we live different sides of the City, have young children and she works full time). AIBU to feel a bit annoyed and hurt that she's bringing along a friend from work?