well, you could just communicate with her in an adult fashion and explain to her that what she is doing disturbs you and that you want to know the reason behind it. that's all you have to do. talk to her. instead of guessing whether she wants more attention or whether or not she's just doing this because she is she. if you realyl know her, you won't have to guess and you'll know for certain, but it is ok if you don't know her that well because people do change. just talk to her and things will be better after it. no more unneccessary thoughts.