I don't see what's so weird about it. Besides, we all have to look out for each other in these situations.

[But really, Alison knows it's Sarah who's set the tone on this, probably because she sees a lot of herself in Chloe. As far as Alison's concerned, Cosima would probably try to befriend anyone.]

Cosima would probably like to have someone to go sightseeing with, if you're interested.