The Tao of Steve (2000)

Dex: Why would I lie about a spider?
Syd: You lied about the spider so you could get in my tent, so.
Dex: So what?
Syd: So you could... you know, make a move on me.
Dex: You are such a self-aggrandizing, solipsistic ego queen, you don't even know.
Syd: Did you just say solipsistic?
Dex: I most certainly did.
Syd: I love that word.
Dex: I do too.
Syd: Don't even think about it.
Dex: ...solipsistic.