"Life has been an adventure"

"If you tell me your secrets, I will share mine "

"Be careful what you ask, you might get an answer"

"Recently I have been well, although there have been many ups and downs. I am (blah blah with basics). I am looking forward to getting to know you again." Then just let her know your now through your facebook posts. And if she has specific questions, or if you feel there is some way you can help her by sharing part of your past, go ahead. Let time decide how much you want to share.