The Princeless Bride

S8 E16: Liz (Kim Rhodes) has planned and organized her perfect wedding day down to the last detail. However, things start to fall apart when the groom, Jonas (guest star Neil Patrick Harris), and the wedding guests are delayed by a blizzard. Upset because Jonas is not there, Liz blames him for the day being ruined. Stung, Jonas suddenly realizes that maybe he doesn't want to get married and Andrew steps in to mediate.