Unsubscribe Amazon Prime on PS4?

On my roommate's Playstation 4, I'm logged in to the Amazon Video app with my Amazon Prime account.

Now she moved out and I could not log out. To stop using my account, I changed my Amazon password several days ago. But now I got an email that she borrowed a movie on my account for a fee. I do not think that's funny.

Have now looked and proceeded as follows:

prime video → Settings → My Devices → PS4 selected → log out

Is the topic done now? The password is already changed as I said. Is she still coming to my Amazon account, or did I unsubscribe now?

I just do not want other people to be entertained at my expense.

Yes, that's it. She gets the request to log in again if she wants to use the app.

Super thank you!

Is the device management on Amazon, because you can directly log off devices.