Yes exactly and she also kind of breaks up with Ian and her path closes (at least for now) if you take Emma home instead of her after the Club if I remember correctly.
And I remember in my very first playthrough (where I just wanted to get all the girls with Ian
![Big grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
) I was so pissed at Alison after she broke up with Ian but still did continue her thing with Jeremy although he was fucking way more around than Ian himself and then because of that I asked more Question here and started to understand Alison's Character better, played her full Route and now she is my favorite Option for Ian.