Being Accountable for My Choices

I am learning that it is important that one be accountable for their choices. It is important to be able to justify why we made the choices we made. I have been contacted by someone I havent spoken to in 10 years. I happen to remember why we stopped speaking, but she does not. She also still thinks of me as the girl I was 10 years ago. I have responded to her emails and I feel that it is important for her to understand who I am vs. who I was. Part of what I have left out is the one thing I am ashamed of: my weight.
She already wants to see me when I go home for Thanksgiving. I have until then to loose some weight. I have been very lax these past few weeks. I have had other things on my mind. I have gained a good 50 lbs in the 10 years. I don't intend to try and loose all of that, but 10 or 15 would be nice. I will need to swim when I get back from my vacation and get back on the WW plan even if I am not going to meetings.