She doesn’t want commitment but she also doesn’t want to let him go. She needs a push to change the status quo and Atiko will be that push.Didn't she just bang some other guy a few chapters ago?
Or is this one of those things where she is just possessive, and only wants to monopolize him from the other girl, and is only focused on him and ignoring the other guys because she's in danger of losing her hold on him. Either way, about as healthy as usual, which is to say about as healthy as a lot of teens and even adults, so I guess it's not too surprising.