Hi @Lisaba86,
Welcome to the Roku Community!
We appreciate you inquiring about the issue of your Roku Camera access and would be more than willing to assist you.
Your ex-boyfriend can still access your Roku Camera if he has access to your Roku account and the email address associated with it. To prevent this from happening, you need to change the passwords for both your Roku and email accounts. You also have the option to create a new Roku account and avoid sharing your credentials.
For more help, please visit our Roku Support article: How to create a Roku account | How to change your password or email for your Roku account
We hope you find this information helpful.
Cheers,
Riamie
Riamie D.
Roku Community Moderator