Sammy I will kick you up the bum!
You will never get to target if you keep going out and stuffing fatty food and drinking gallons of alcohol!
You can however still have a social life and stay within reasonable limits. With Nando's if you just had chicken and salad with some spirit and zero cal mixer that wouldn't be so bad as the full works with loads of booze. I find that when I am on the diet the alcohol is far more powerful anyway so you don't need to drink as much to get the effect!
Dates could involve cinema or theatre, or go clubbing and dance the calories away instead of putting them in. A single friend of mine seriously did put her life on hold for several months while doing Exante, she stopped dating as it was too tricky, and when she went to weddings etc she seriously had her shake! But she got to goal
I have been out with friends for 'lunch' and just had coffee and my bar and I've had mates round for meals and eaten the protein and veg but left the carbs.
You CAN do this, your life doesn't have to revolve around food in order to have a social life. The weight gain is probably due to the salt in the food causing the alcohol fluid to be retained. If you are strict the next few days and drink loads of water it should come back off. I read it somewhere in the Dukan Diet book, alcohol and salty food big no no while in ketosis.
Stay strong Sammy, as you say you are over halfway there but it's no time for complacency!
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)