I haven't had to deal with any problems from friends, since I have no friends!

Okay, not true, but all my friends live in different states and different parts of the country (we were scattered after graduation from college), so I haven't seen any of them in months. The only person who sees me all the time is my bf, and he likes me whatever weight I am (besides, I'm now a little less than I weighed when I met him, so it's not like he has never seen me this thin really).
We have some friends from college who live in Boston, and one of them has a sister (and that sister has a fiance) who lives in RI, so we will be getting together with all of them this Saturday to go to the beach. This will be the first time I've seen two of them since I graduated last May, and they have not seen me since my high weight. I don't think it will bother them though (my guess is they won't even notice!).
I got a positive reaction when I saw my bf's family a couple weeks ago. They hadn't seen me since my high weight either, and his Grandma was very impressed (that I had "turned my life around," I think she said -- sure makes me wonder what she thought of me before!). Anyway, I think if a friend leaves you because you are trying to improve your life, then you probably don't want them anyway. The best friends will support your dieting efforts. There might be a little while of tension, but I think if someone starts making inappropriate comments to you or something, then don't give up on them until you've had a couple serious talks about it with them.
I have a funny story though . . . one of my friends knows that I have been dieting, and is always saying she needs to lose weight herself (which she doesn't BTW, she is already thin) and she is out of shape and stuff. She came up from NYC to visit a while ago, and brought us a big bag of chocolate caramel popcorn as a hostess gift! I thought it was pretty funny, I don't think it even occurred to her that it was a temptation from my diet (I did end up eating about 1/3 of the bag, my bf ate the rest). We have been friends since childhood, so I have never been the "fat friend" or anything with her.
Okay, I'm just rambling now (can you tell I'm avoiding working on my research?).