Is it unusual for my ex to fall in Love with some random boy that to her is a stranger from the West if she is from the East she met on FB?

My ex girl has a boy friend that lives in California. That was the best friend that I just asked about that ignores me on Facebook. The thing is, she here in my state in North Carolina, but she met him on FB. Is that inappropriate if he is from CA? Why would some girl from the East Coast meet a boy on Facebook that is what should be a complete stranger to her from all the way out in California if she is from North Carolina? Why can’t she stick with having a boyfriend from her part of the United States, rather than someone that she has never met before? Is it just me, or is this inappropriate?