I personally feel like that this was more of a before Rhodes Island scenario where Texas was the old version of herself, where she was more violent and aggressive. Like, usually she doesn't smoke cigarettes at Rhodes Islands, but here
she does, and Lappland looks way too tame.

Exusiai is the cheerful and joyful best friend that is willing to kill another person if they threaten Texas, a subtle yandere, while Lappland is yandere that is actually very sad, a way more direct yandere.