OMG you are doing SOOOO well, don't beat yourself up for one night!! Weight loss is hard and you still need to be able to go out and eat with people, especially when youre baby-less! Ok so maybe you could have made a better choice for dinner, maybe you had dessert...but that's ok, its only ONE day! Don't worry about it, and get back to it today. I am also trying to loose baby weight, plus some . I know how difficult it is. Don't feel guilty for having a good night out with your hubby.
There is a thread started about weight loss which alot of people have joined (don't know if you have?) maybe that will help you with those next kilos?
Good Luck!!