I hooked up with this girl at event X and since things have returned to relative normality. That also means it's back to the possibility of going an entire week without meeting in person and a dependency on snapchat as a means of communication. While I don't dislike this girl, her friend group is the most exclusive (and honestly most terrifying) group of people I don't like (some of which I hate) and can beat up. With every snapchat I send I run a 50/50 chance of either getting a response from her or from someone from the vast number of people that have apparent access to her phone. Investigating this girl turned up Twitter posts muddled in obscure references, a Facebook with few details and a very strange Facebook nexus of friends. Though not confirmed fact, she's told me that she's had a strange history of guys that have chased her including a chill football guy and (possibly, only possibly) this fuck faced, duke nukem looking, blonde, pretty boy bitch who seemingly can't survive without always having a girlfriend. This history is made stranger by the fact that her brother uses to fuck people up on the reg and in one notable case beat a kid up and spit on him for making fun of her. My conclusion: this girl is either just innocent and super fucking weird or a low-key maneater.

Tl:dr I've after this weird girl with a weird history and don't know what to do.

I've been at this for 2 weeks, I'm tired, and the worst is that I still don't have the info to make a conclusion (or at least one where one possibility is clearing better than the other).

What are the red flags I should've looked out for and should still look out for?

What should I do in case of possible conclusion 1 or possible conclusion 2?