You shouldn't stalk people on social media.
Finn has an acquaintance who he has recently taken more of an interest in.
Finn wants to get to know his acquaintance better.
Finn engages in conversation to get to know the acquaintance more.
Finn goes through his acquaintance's social media to find out more about her.
The girl gets to know Finn better at the same time, and they hit it off.
The girl finds out that he's been looking through her profile and pulls away.