"It does sound like her knickers were in a twist."
"Why do you think she said that?"
"What were you thinking while this was going on?"
"I can imagine your face now."
"How did you keep from laughing/scratching her eyes out/crying?"
Venting is just that, she wants to share her feelings so engage them. I still get surprised when I think I did nothing to help and I get complimented for helping her.
EXCELLENT ADVICE... EXCELLENT.. THAT is how you do it guys...
I also use some time honored techniques that work very very well and require the IQ of a rock..
such as... "uh huh", "oh really", "mmmmm", "no kidding?" "wow"... "That would make me ________ too"
They work guys... It takes the pressure off of you and helps her to vent... The great thing is she will view you as a GREAT listener...
K.I.S.S... keep it simple guys...(for YOU more than for her)