I'm blown away by the similarities ...
My stbxAH has many many many times said the following (and I thought I was alone in finding them infuritating)
"I'm sorry you feel that way"
"I understand"
"I see"
I guess coming from a non A, non narcissist I'd see these as reasonable statements but coming from AH over the years they've always sounded more like ways to get out of having to participate in a conversation or care at all about anyone's feelings than his own, than anything sincere.