I really sympathise with when it all just goes to pot. Bench, I'm sure you know yourself not to focus on what's already happened and stay in the here and now - even a few days' relapse can't put you back to square one, it's always repairable as long as you get straight on the bandwagon again.
I had a potentially awful night last night but fought SO hard with myself not to cave in. I'm also working a nasty cold, I was run ragged all day long (typical day mind you, I'm a mum of three lol) and some things happened that really annoyed me and left me feeling massively stressed. I also didn't get enough to eat during the day. Made a lovely tea which was still within syns even though it felt really naughty lol, then WHAM. That urge to just go to the kitchen and eat anything gripped me like a fecking vice. I was mentally running through all the things I could have if I just let myself. Eugh. But, this morning I can happily say I DID NOT GIVE IN! I knew it was stress and tiredness making me want to binge and told myself that food wouldn't help at all. I just tucked myself up on the sofa with a blanket and chilled out with the tv to try and forget it...not easy, but soon enough I fell asleep and forgot all about bingeing lol. Woke up this morning with pure dread at first thinking I'd let myself go, then realised I hadn't and had the biggest sigh of relief...if I'd binged last night believe me I'd be sat here all weekend stuffing my face.