He's on a self-indulgent 'ego trip' with his latest movie, which he wrote, directed, and starred in himself.
Winning was good for our 'egos'. = Winning boosted our 'egos'. [=winning made us proud of ourselves]
a bruised 'ego' [=a feeling that you are not as important as you thought you were]
(..) to tell you their secret identity. Think it'll strengthen the relationship or something. I said, "Girl, I don't want to know about your mild-mannered alter ego." I mean, you tell me you're a super-mega-ultra-lightning-babe, that's all right with me. I'm good. I'm good. No matter how many times (..)2004 The Incredibles