Maybe this is in the movie and I don’t remember it, but how does Thanos know who Stark is?
@jurakan The Russos confirmed in the DVD commentary that Thanos knows who he is because Tony is the one who flew through the wormhole and destroyed his Chitauri army from the first Avengers movie.
This is when he’s apologizing to Tony about dying because he knows Tony is going to feel guilty about it. He’s trying to comfort him because he knows it’s not Tony’s fault and doesn’t want him to feel guilty about it.