So, I know a girl for like 3 years, I’m a firefighter and she works in one of the fire stations where I did one of my courses, anyway, we started talking via Instagram (i texted her first), since then, we talk pretty much everyday, but, there’s days where she sends random pictures of what she’s doing and selfies and stuff, and there’s other days when she actually ignores the shit out of me? Thing is, why she shows interest one day, and right in the next day looks like I don’t even exist? Need some advise(sorry I don’t know if it belongs here)