Yesterday, I broke my fast with a danish, and then my dinner was corn dogs and ice cream during a rare night out with friends. Do I feel great about it today? Absolutely not. Does it happen once in a while? Yes. Am I still in love with I F as a lifestyle? Absolutely. Because every day is a new day! Doing a longer fast to compensate it doesn’t seem crazy. Doing a day of eating only salad is also worthwhile, in my book. This is such a flexible and forgiving way of life. Excuse yourself, enjoy yourself, and move on!
Bright side is after doing the right thing for a couple of days afterwards, you’ll get to see how your body reacts and how much time this social opportunity cost you - but it’s only time and you need to look at IF as a lifestyle not a race or diet that you can go off of later.
I find with my body that a typical night out where I’m not very good can delay progress by up to a week. After recovering lost progress, I’ve often been able to make new progress quicker or sometimes break through plateaus, so it’s not all bad.