Not all relationships last forever and many will share their passwords , logon details , account details with their partners in life.
So what do you do when things go wrong and your partner has known all your passwords and logins for your devices and accounts.
From my experience helping clients in this situation – here are my key steps
List all your accounts
Microsoft , Apple , Google , Dropbox , Social Media – any account that is online – change your passwords – enable 2 factor authentication – change your security questions
Check your account recovery contact – is it your partner
ISP – make sure they are not on there as a second contact
Social Media – it may pay you to not be on it for a while – unfriend – block – be aware that your ex maybe friends with people you have in common on a social media platform – that is how they can locate you when you are out – discuss this with your friends.