Giving or not giving fb’s password is not a proof of loyalty and disloyalty.
There is a big life outside of social media. Life is not only facebook and Instagram. If someone wanted to cheat on you,nothing will ever hold him/her. You might have their password,but there is an option called ‘delete messages’. You might be able to open their facebook account,but you won’t be able to know what is exactly on their mind,and what are they planning to do. So loyalty is much deeper than that. Loyalty is not measured by any password in the world.
Good WhatsApp