In the season 4 finale of Castle, during an argument Castle says to Beckett “Every morning I bring you a cup of coffee just so I can see a smile on your face.”
That fight was amazing. And seriously, Nathan Fillion… All of the awards!
“Because I think you are the most remarkable, maddening, challenging, frustrating, person I’ve ever met. And I love you Kate, and if that means anything to you, if you care about me at all, just don’t do this.”