I think that it's natural to feel attracted to your supervisor - it's the nature of the beast. They talk to you, listen to you, talk about your work. But really get over it or wait until you get your Phd. It would not be worth screwing things up for yourself! Really it will distract you from your work. So stop thinking about getting under it and get over it already. (up)

Or is that a little too much? :-)