Ted frets about finding a date for his friends Claudia and Stuart's wedding; when Robin breaks up with Derek, Ted invites her to the wedding and she accepts. But when Ted runs into Claudia two days before the wedding and mentions that he is bringing a date, Claudia tells him that he indicated on his RSVP card that he would be coming alone and angrily forbids him from bringing a date. Ted tries to tell Robin that he will not be able to take her to the wedding, but chickens out when he sees Robin in the dress that she bought for the occasion.