How to Deal With Toxic People

The way we perceive people can often either get us in trouble and or enable their behavior toward us. If i believe a toxic person's going to show up better in my life, and they never do, who should be responsible for that toxic behavior? Or is it me that's the problem in my life? Some people will say it's equal. Sometimes you can't get away from someone and they won't stop hurting you or behaving adly.