Please help!I really need your help,why is this...................?

[Aaaaaa]

I found my old support worker on facebook and I sent her a friend request in which she didn't accept but she is friends with another client/service user (my ex girlfriend) that she use to support.The old support worker is also friends with my ex girlfriend's currnet boyfriend.Why do you think she won't accept my friend request?
YEAH!,she finally accepted my friend request a day after I posted this question but thank you for your help.

[Ronnie]

Because she don't want to your friendship on Facebook or any other personal matter.