Lyric discussion by GraveMess 

Cover art for Mistress lyrics by Red House Painters

I can settle this debate, as I know the woman that this song was written about. (as was the disastrous 'Helicopter, as well).

He was dating more than one person at the time. The person in this song is the mistress he was cheating on his girlfriend with. He was telling her she was too boring to keep his attention.

Still, he was always known as a super womanizer around the San Francisco/Bay Area. He makes beautiful music, but he isn't the nicest guy. He is quick to admit it, himself.