person A: The other day_comma_ there was a movie I wanted to see. I invited a friend to go with me_comma_ but they decided they didn't want to come because they were going with another friend. 
person B: That really sucks... did you tell them how that made you feel? 
person A: No...I guess I should have. I guess I really think they should have went with me too_comma_ or invited me to go with them. 
person B: I would tell them.. and if it happens a 2nd time then they arent very good friends to have! :/