my fb password was changed?

[Freddy]

for example my origional password was "america" and i changed it to patrick. well the new password was working but today when i logged in patrick was wrong and i tried america and it was correct why did my facebook password reset
my password sint actually america or patrick it was an example thats why i said for example lol but im sorry i wasnt clear

[Xanza]

Okay, three things here.

1) NEVER under ANY circumstances put ANY passwords that you've used in the past in the open web. EVER.

2) Those are basically the most insecure passwords you could possibly have:

"patrick" It would take about 0.077228944 seconds to crack your password.
"america" It would take about 0.1385564977 seconds to crack your password.

3) Because you're passwords are so LAUGHABLY insecure, it's not difficult to figure out your email address, and attempt to gain access to your account. However, considering that your password was reverted, it stands to reason that someone also has access to your email account and has reset your password to retain access to your Facebook account.