Song played on the TV show weeds?

Question

I am looking for the name of a song. In one of the first episodes of the TV show weeds, when the main character finds out she is sleeping with the DEA agent, there is a song that plays in the background:

it starts off with the lines: "what the f*** was I thinking. "

P.S. I don't know if we can swear on this site, but we all know this 4 letter word.

Answer 1

the song is
f*** was I and it is by Jenny Owen Youngs on her CD BAtten the Hatches.

It's also on her my space
http://myspace.com/jennyowenyoungs