Have you ever been in a situation like this?

When you see a weakness or a flaw in someone you really love/ are close to or admire? Maybe you also have this weakness, but when you see it on them it's difficult to take it... like you thought they were better than that.
I was in a similar situation with a friend. It came up unexpectedly and she wanted to open up to me. I listened patiently and said "Hey it's alright. I go through it too. I can relate" but.... in my mind there is a little disdain for her and I think, "what? You too? I thought you were better than that"