Like most creative types, Patti LuPone is incredibly talented, totally watchable and very dynamic but she is also deeply insecure, easily wounded, and emotionally fragile. She also has a lot of anger. She admits to most of that in her book and other interviews.
I think the most telling thing I ever read about her is the OUT interview with her where she seemed lonely, dispondent and sad. The going out alone after EVITA story is very telling too. She has latched onto Benanti as a BFF for some reason, but she typically doesn't mingle with her contemporaries and is a terror if for some reason she doesn't like you.
I accept her for what she is, what most actors are-just regular people whose job is on the stage. They have all the idiosyncrasies and insecurities we have.
We all have that one kinda funny/kinda bitchy lady we work with at the office who we tolerate and sometimes enjoy but never invite out for coffee. That's Patti LuPone.
"The sexual energy between the mother and son really concerns me!"-random woman behind me at Next to Normal
"I want to meet him after and bang him!"-random woman who exposed her breasts at Rock of Ages, referring to James Carpinello