Big Mistakes and Shame

I had very little pts used by the time dinner came around, because I had had plans to eat out with a friend and had wanted to be able to eat whatever... well she canceled.  So Eric and I decided that we'd both like Leann Chin.  Everything was going fine... I had plenty of pts.. and I had my three cream cheese wontons, and then started in on my orange chicken.  Now about half way through I was feeling the twinges of fullness or satiety and I set the plate aside.  And then I picked it back up again and ate the entire plate up.   Now of course, technically I have flex pts to use and I had lots of pts - 20 in fact left for dinner, but I had wanted to save every one of those flex pts for the weekend.  And I feel sick now, just stuffed, and gross and ashamed.  It was a good learning experience for me I guess, but I'm mad at myself.  I know what my boundaries are and I ignored what my body and my mind were telling me.  I feel like I've taken a step back in my progress and that I'm not respecting the progress or the learnings that I've made.  I know tomorrow is another day, but I've broken down tonight and I'm disappointed in myself, I've resorted to my old tendencies.  Tomorrow is a new day, but today just sucks.