I have a similar situation with my pdoc. I've seen him since 2008 after separating. He was very supportive even suggesting a dating site, which he ended up on too after a month or so. It was awkward to say the least, and for the time being I have opted to work it out by telling my female therapist ( like you I see my pdoc for med management and support but not deep therapy), friends who don't mind listening and this great forum, which is very cathartic. For me, It came down to whether or not it was affecting treatment...are you holding back information in order to make a good impression? Are you becoming attached emotionally, opening yourself up to heartache? If so I think you should think about discussing it with your doc. Just be aware of what you want to accomplish before having any talk. He cannot date you so if that is what you want, it would be a better idea to talk to someone else first who might help you keep things in check. But, if it's harmless attraction/flirting that might brighten your day a little, but otherwise is harmless, you might not need to do anything at all. With a pdoc I find it a little murkier about what to do, since the work with them is not usually as emotionally intense as it is with a therapist. It makes it harder to find a natural way to approach the subject, I think. I hope this has helped, I know it is hard!