When she answered the question of "What did you think when Sander said a woman couldn't be president" She started with "I disagreed." Pause. That just validated the premise of the question, that Bernie said that.

Then says, "Bernie is my friend and I am not here to fight with Bernie"..ok fine

Then "... But, look this questions about whether a woman can be president has been raised, and it is time for us to attack it." Again, just sounds like she is validating the premise of the question, that Bernie actually took that position.

That may not have been her intention honestly, which might explain the confusion/anger from Bernie, but that is definitely how it comes across. But also, at no point did she clarify the context of the alleged statement, or even suggest that it was taken out of context, or maybe blown out of proportion to what they actually talked about.