True. Sadly as Players we are able to interpret a lot of accidents the Author makes in their oversights. For instance, what prevented the Creator having replaced "Footlicker" with "Temp Bf" during her escapades with the guy so as to make it more believable as to why she was easily confused, though that doesn't ignore the fact she was using her work phone at said time. Not to mention during said scene, depending on your dialogue choices, you always tell her no to sex but then the one time out of nowhere "you" tell her its ok she immediately does it with zero hesitation or questions until the next day. Again lets not forget it took her the ENTIRE night and you to message her before she realizes her "mistake". The fact the MC lets it slide so easily is annoying as well.
The fact she uses two phones and used the one where she roleplayed a gf for a client is indeed to convenient for her, something else the bf needs to be able to call her out on.