Why did she dump me because I won’t give her access to my social media?

I’ve recently been talking to this girl and she demands to have access to all of my social media but I believe that’s invasion of privacy, not only mine but my family and friends since she will be able to read all of the messages they send to me. And since I refused, she made a huge deal out of it and broke up with me because of it and said I don’t care about her or trust her enough to let her have access to my social media accounts.
Why did she dump me because I won’t give her access to my social media?
Post Opinion