I know how you feel.

Nutella is my weakness! and I ate a whole bunch of it the other day and I was so disappointed in myself. But instead of pretending it didn't happen and ripping that day out of my diet diary I wrote it in and wrote how gross I felt after and then I just let it go. I'm not gonna let it get me down again so I can have more bouts of emotional eating over it!

Instead of feeling so bad about yourself ... think about it this way ... what you have developed is a food conscience which is vital to any healthy eating lifestyle. It means your conscience will tell you when you have had too much. After all, no one can expect to never ever have cheesecake forever. It's all about controlling the portion sizes and allowing yourself a treat once in a while. Anyway, it's probably not going to affect your weight loss as much as you expected. Cheers!