is this possible

i was interacting with a girl on facebook for a few weeks, i thought it was going well, it started off by her liking my posts on my timeline, then i decided to PM the girl....but all of a sudden the girl has just stopped interacting with me...stopped messaging me back...and i'm left wondering what went wrong?

and i got a little paranoid and thought '' could she have been told not to interact with me by persons unknown?'' like other men or powerful people?

is this just my paranoia going into overdrive or could i be right?