How old are we?

I’m at a point in my life that I just can’t put up with drama. I have a new friend who texts me nonstop. I’m fine with it but then I see them with a group of people they ignore me and act like I’m not there. They’ll talk to everyone around me but me. Then the next day they’re texting me like everything is fine or asking me why I was ignoring them. Why are people so strange?