This little detail doesn't stop Derek from asking her out.
These two have continued to be each other's person for 10 seasons.
Addison is cheating on Derek with Mark.
Meredith tells Derek they could be extraordinary together.
MerDer write their vows down on a post-it and sign it.
George reveals his true identity to Meredith.
The gunman barges into the ER and demands that Cristina stop operating on Derek.
Arizona struggles to convince Callie to take her back.
Lexie and Mark profess their love for each other right before her death.
Jackson's almost death prods April into telling him her true feelings.