Thats great you didn't have a gain, your obviously getting to grips with portion sizes etc... Well done.
you'll get there hon. no worries!! you've done really well not to gain while you were away. think you may have cracked the maintenance mindset this time!! just remember, when you buy those clothes, you can keep them for years. just keep trying them on to see if they still fit
abz xx
if your friends go it could be quite nice socially too, and not really like you are dieting at all. good for you hon.
abz xx