I've been having trouble with my password for Netflix.

I signed up to Netflix using my g-mail address, and a unique password.  However the app keeps rejecting my password.

I think that Netflix is using Google sign in ... which means using the password associated with my g-mail address  ... different from the password I have used for my Netflix account.

Is this possible?

And if yes how can I stop it.  I don't want to use the same password for both.