Damon gets the sudden urge to check to phone and demands Katherine give it back to him. YESSS READ YOUR DAMN MESSAGES. Its like he got this feeling something wasn't right
"You are going to get yourself killed. The Damon I remember wouldn't have been that stupid."
"I wouldn't have done it for you."
AAGSHD he will risk to life for Elena. We all been knew. But truthfully, he would have for Kat too. He did and he died in 1864.