Hey, whaddya gonna do.
Congrats on your weight loss so far!
I don't think you should feel guilty at all! Guilt is not a productive emotion, imo. Things are going to happen and it is not the one meal or even one weekend that gets people up to the weight I am. It is a lifestyle that does it, just like it is a lifestyle that keeps people fit and slim. So long as you live the lifestyle, the 5-10% you may not be perfect won't undo the whole thing.
I am going to be exploring the lies that kept me fat (I use past tense even though I am still obese because I don't want to remain in that mindset) in my blog soon. I think therapy would be a great idea, but blogging is free LOL
Again, congrats on your loss and good for you for getting back in the saddle and soldiering forward