S8E13: Go, Stewie, Go!
You've made me feel so unattractive lately that I went and did something disgusting and abhorrent,
and I'm ashamed of myself.
Peter, I made out with Meg's boyfriend.
You made out with Meg's boyfriend?
How the hell could you do that to me?
Because, Peter, you've been making me feel old and fat and unattractive and worthless.