Bucutie,
I agree, it seems like this girl isn't healthy for you - she just seems to be dragging you down!!! I really can't stand when ppl copy their friends - it really bugs me. In freshman year, I had this friend that copied every single thing of me - my clothes, the way I talked, my hairstyle, everything!

It was sooo stifling and I just felt sick at seeing my carbon copy every single few minutes. It turned out that it was a huge issue of insecurity from her part. I had to cut her loose, b/c it was too draining for the both of us.
I agree, maybe you should write her back by email, that way you can do the same thing she did, but yet, you can also get ALL your thoughts out on paper, and with the privacy of your computer.
And, you know what? My mother, who is in her early '50s, just met her best friend like a few years ago. You are NEVER, EVER too late in finding your best friend. Heck, my Grandma met her best friend like a year ago! Also, don't hesitate to befriend even more the woman who has a family. Even though you two have very different lifestyles, it won't matter - friends are people, that, no matter how different youare, are here to listen and be there for you. I do agree that it is hard sometimes to befriend people who have totally different lives than you, but you would be surprised to know how valuable their friendships can be

.
I'm praying for you Bucutie - hopefully you can get some closure from this - either becoming good friends again or just letting her go - i'm sure whatever's best for you will be done

. Good luck again!!!!!!