Happy Valentine's Day!

I got Austin flowers for Valentine's Day. I mentioned that carnations are his favorite flower.
Austin: I never said that.
Me: Oh, I thought you had. What's you favorite flower?
Austin: I don't know.
Me, incredulously: You don't know what you favorite flower is?
Austin: I've never thought about it.
More discussion about flowers.
Austin: What's your favorite flower?
Me: I don't know. I don't really like flowers.
Austin: But you're going off that I don't know what my favorite flower is.
Me: I don't like flowers.
Austin: See, you frustrate me too.