I am SO sorry!!! I got off facebook a LONG time ago. It made my life infinitely better. My friends and I have actually had to make an effort to keep up with one another. It's not so bad. You realize that you keep up with your good friends and don't care for all those randoms. Maybe consider taking a break?
The whole twin thing is one of the weirdest things I have ever heard. I think I will be pondering that situation for the rest of the week. It is so bizarre. Also a bit annoying with the extent of the "let's do things together"