Quit telling her to change her password, she already said she can't!
She might not be able to change her password, but she can create a new account. I think the other users were just trying to help. c:
As for your situation, Rita, I'm terribly sorry to hear about your misfortunes. A few members have suggested a password change, but if this person already has a hold of your account details, then there might not be any point in doing so; you might have luck with creating a new account, though, but since this person most likely has your IP address, it's possible that they could still find their way into your new account. I would suggest PMing a Staff member concerning the issue. Even though your computer is fairly new, it's never a bad idea to run full scans on your computer, because it can pick up malware, even in the smallest of places. Sometimes people can hack into your account by connecting onto a virus that can easily be transmitted through the network. Malware can be sneaky, but if you have a good anti-virus, it should be able to pick most of it up.
As for your friends, I'm sure they'll soon forgive you once you explain to them about this issue. Hopefully they'll realize that you wouldn't ever say the things that the hacker made you say, and forgive you with an open heart. If they don't believe you, you can always tell them to check this forum thread.
I wish the best of luck to you and your account. This incident is definitely a scary one, but I'm sure there's a way to help get things back in order. c:
She already said that her friends aren't responding, and I assume they either exiled themselves to party, are AFK, and failing that any response at all would probably be a hostile one.
This is a serious issue. Despite me not having experiencing this, I can tell how horrible this is. I'd prefer that there be more information regarding the possibly profane character left by the hack, including screenshots if possible. We need as much information as possible to disprove the vague possibility that this is an evil trick to troll the forumgoers ending in hamsterdancing hate.