There are different phases in a person's life, and different things people have passed through, u can't just walk into a person's life and judged the person based on the chapter you walked in.
People have different reasons for behaving in certain ways, we should try and understand people rather than making conclusions and judging. At times we can't go through half of what some people have gone through in life. It's just about understanding, the world would be a better place if we start understanding people rather than condemning or judging.