I'm glad they didn't drag out the confrontation just because that's what most TV shows would do and it makes me more excited that Breaking Bad is doing something different. Also I'm not sure they could justify it in character. Hank's not a good enough liar/actor the way Walt is to not tip his hand in front of Walt, and Walt's too sharp not to notice the way Hank is behaving. It would not have made sense for the confrontation not to happen.
Agreed. Hank's always been one to wear his emotions on his sleeve, and whenever he does
try to hold something in (such as the panic attacks he had after the Tuco shooting), it's pretty plainly obvious that something is troubling him.
Walt would have picked up on that immediately.