Sneaky sneaky

I have a new roommate that moved into my spot. Upon move in she told me she doesn’t use wifi, has data on her phone and doesn’t have a tv or laptop or anything she would connect. Because of this she didn’t want to pay me for the wifi. Okay, great. Fast forward a few days I get a notification that she not only connected 1 device but 8 devices to my internet… I don’t want to have to confront her so early on over something like this but how sneaky. Do I just let it go? We pay equal rent even though my room is bigger (but a shared bathroom) so I figured I’d just let it go and count it as the difference in price for room cost? I don’t want to start burning bridges and cause issues this early on but I’m just pissed at how shady she was and thinks I wouldn’t have ever realized she had a plethora of devices on my wifi. I feel if I bring it up I’m the asshole for charging her for wifi if my room is bigger and we’re paying the same. Even though this was my apartment first? Idk I need someone to bring me back down to earth!