is that normal??

a friend of mine said that her bf has access to their cctv system in their house. the house that her bf doesn't even live in, and a home to her other relatives. she seems fine with it though im not sure if her family knows about it so there's that… but what really bothered me is how controlling that felt. like why am i being monitored in my own house ??? do people actually watch their bf/gf through their cctv if they're not physically together? or am i just too single for that shit? what do you think?