They always remind you of your past mistakes to keep you down.
They reach out when they need you and ignore you when you need help from them.
They put people down to feel better about themselves.
They act superior and entitled.
They don't take responsibility for themselves or their lives.
They lack understanding of boundaries.
They lack empathy.
They leave you feeling emotionally exhausted after an encounter with them.
They try control you by guilt tripping.
They never apologize.
They are easily jealous.
They give backhanded compliments
They're overly defensive. copied from https://humanmindreader.quora.com/13-Signs-of-a-toxic-person-you-shouldnt-ignore