What does this mean with my ex doing this?

several things... 1) she might be having second thoughts because 2) she might be lonely without you in her life anymore which causes her to 3) stalk you on fb & prolly other ways too.. which makes her feel 4) insecure because you have a life & she doesn't and all of this boils down to 5) she has control issues evident by the fact that she made you break up and you did now she's trying to find her way back to you...=) IDK