Thank you all for the input. The Psychology Today article was very interesting. To answer some of your questions, I found her attractive pretty immediately. Our friendship has grown very strong over the past few years. I can certainly live with having her as a best friend. It is also important to note that she became a big part of my life during a time when I experienced a lot of loss--my mom, my job, my marriage of 30 years (we agree its over, but for financial reasons we are still married). I will continue to enjoy my thoughts and feelings while also respecting her wishes and the boundaries she has placed on our relationship. Oh, and yes, I have told her seriously that I find her attractive. I'm not sure if she ever thinks of me that way, but I believe her hesitation is born out of her wanting to preserve our friendship as well as the friendship she has with my family.