Somebody had hacked my email and had stolen all my passwords. Seeing as how I believe I registered with that email account, he probably got my password to this site as well. If anything has been posted supposedly be me or if I was supposedly in the chat in the last month, it was not really me. If any posts have been made by "me" in May, could someone delete them? And can I get a new password?

Yes you can change your password by going to "My Home" tab and scrolling down to edit password. Also, if you have specific posts, I can delete them for you too. Let me know!