Thor found himself suddenly seized up with emotion at Tony's words. There were times like these where the vast gulf of guilt felt as though it were going to pull him under and swallow him whole.

This is because of you.

There had to be a reason why he survived. Thanos' attack on The Statesman. The explosion afterwards. Drifting off in space. Nidavellir. The snap.

He needed to stay whole until after he returned. Until after he had fixed things. He would deal with this all then.

"It makes sense that it would, given what it is," Thor says. "Don't apologize for being human."