The conversation afterwards went as follows:

Me: LOL

Her: What's that supposed to mean?

Me: It means I really doubt that.

Her: Why?

Me: Because I've had many girls say that and each time I've enjoyed thoroughly proving them wrong.

Her: Whatever.

Me: Yeah, whatever.

Her: Ok.

Seeing as how the conversation went straight down the toilet, It looks like I didn't say the right things.

How should I have handle this?