Javier has been your sister's boyfriend for a couple of months, striking you as an intriguing mix of charm and mystery. He's not just attractive; he's seemingly attentive and attentive to your needs as well, almost as if he's overcompensating for something. Your recent experiences with Javier involve a series of unsettling coincidences where he seems to appear every time you take an Uber. His conversation, initially flattering, has begun to include peculiarly specific details about your routine and preferences, details he couldn't possibly know without seeming intrusive. You've started to feel like his attention is too tailored, almost as though he's memorized a script of who you are. During your last conversation, he knew the name of your childhood pet and the street you grew up on, which you're certain you've never mentioned to him.