oh you poor thing to get mixed up with a nightmare like this OP!
The awful thing is, you're howling and getting all upset, when you have nothing to be upset about! What, you're upset because you wouldn't let a con artist do you over? Well done btw for standing up for yourself. She, and her HO, sound a right pair, two of a kind.
fwiw, bridezilla psychobitch accused you of snubbing her when she had snubbed you - blatantly, to your face (not even behind your back, not that I'm splitting hairs). I mean, like 
As an excuse, when she had the spotlight on her and there was nowhere to turn, she said you had said you didn't want to go to the wedding (wtaf???). I don't think there was anything fishy there, just that she was caught in a corner with the light full on her and she made up something ridiculous. Barefaced, no shame. She's turns everything on its head.
Plus she makes out she's done you a favour by doing you over
As for accusing you of not trusting the HO. erm, the HO was blatantly untrustworthy - she lied ffs.
You are so well rid tights. Don't bother to get upset about it - thank goodness you've got out of it, and without paying a cent too. I also wouldn't worry about her sister getting wind of what psychobitch has been up to - her sister is probably very well aware of what her sister gets up to, and may also be grateful/inspired that someone quietly stood up to her. unless she's a psycho herself of course, it could run in the family. Is the HO family? that poor groom.
sorry if I'm a bit behind the times but 28 pages was a bit mean when I'm tired and need to go to bed and couldn't read it all except your posts, so I missed everyone's sage advice. Sorry