Can someone still hack your deactivated Facebook without knowing your email or password?

[Shah Pakri]

You cannot delete your Facebook account even if you know the password. Facebook just deactivates your account until you log in again.

In order to get back the password, you should click Forgot Password and it will send you the instructions to reset the password via your registered email or your mobile phone if you have it registered.

Your boyfriend may not be able to hack if he doesn't know the registered email. For him to hack into your Facebook, he only needs to access the correct email address you registered Facebook with. Or he hold on to your phone physically.

The next best thing you should do is just dump him, it's not worth going through a miserable life. There are many other gentleman who will respect your privacy.