I've had the same feelings, and I think as long as they just remain feelings they are harmless - especially if they give a little bit of an emotional boost.
As for the family stuff, in my case only some of my family and only some of my W's family know what's going on - regardless they all pretty much just backed off. I think it makes perfect sense because people generally avoid conflict.
It will be interesting to see how it plays out if we seperate or divorce as I am really close with a lot of a my W's family and they really like me. I've been in their lives for a lot of ups and down over the past 15 years - and mostly I think I've been good to them.
I think over time though family tends to stick with family and the relationships I have with them will fade away. There are some that I will do everything I can to hold onto (nieces and nephews on my W's side), but obviously it will depend on how friendly the sitch is with my W.
I still hold out hope that we can actually fix the problems, become better people and have a new stronger marriage...
For now we can only try and focus on becoming stronger ourselves...
Me - 34 W - 33 M - 8 years T - 15 years D7, D5, D2 Bomb Nov 10/2010 "I'm not happy and INILWY" W Staying for the kids Mar 13/2011