Maintaining weight

Hey all,

Three months ago I started impact (cross training) mix of cardio and crossfit and I absolutely love it. Since beginning of January I've lost 30 pounds from 185 to 155. I feel great, look great and couldn't be happier. But nevertheless it comes with it's downfalls. To lose the weight obviously was on a strict diet and quit drinking (which I believe to be a huge factor in weight loss). Since all these changes my social life has diminished and my friends think I'm some crazy crossfit nut bag and lame now because I don't drink and eat pizza everyday. Nevertheless I'm happy where I'm at and I really don't need to drink and eat foods such as pizza and burgers to make me happy. I guess my question is has anyone run into these problems where friends just don't get you or your social life has diminished due to your diet and exercise. As well as I guess you can say I'm a bit scared to get back on the old train I was on, drinking, eating whatever comes to mind because I put so much hard work into these last few months...