Flowmom, my WH has said the same thing before but by now he knows better- I think they say "have a good time!" to help alleviate the guilt they feel for taking our most cherished ones away for the night due to their selfish needs. Know what I mean? And they can think "hey, a silver lining in this for BW is that she gets a "night off!"
I hope you do something fun though to make the time fly. Heck, even if it's not fun, do something to make the time fly!
me,34 exH,34 S,16 months S:3/31/09-left for OW started DBing 10/09 d final: sometime 10/10 current: http://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2022856&page=1 met in 2004