@MRobberse,
The concern is, she knows full well that she can't have friends unless they are all female and probably even then they have to have some of your preferred qualities.
The mere fact that you are snooping and desperate to find out why you can't see a specific person, spells that out .
What a way for her to live? For all you know, she's semi blocked the person and that's all it is.
I'd say "grow some balls" you don't own anyone, oh I think someone else said that here. What will be will be, controlling sends the other person running eventually.