Monster outside but bitter melon inside

I was talking to our neighbor a nursing student who ask me if i can help him with his psychiatric nursing since im a psychology major i said yes but i told him that clinical psychology is the same as nursing except that they differ in one thing they give medicines to the patient.

Last friday when we were chatting outside a store he didnt went to his class. His class was the psychiatric nursing then he said that he felt uncomfortable with his profesor (lagi syang pinagiinitan) his big almost 6ft and his fat very visible his professor base on his story is kinda weird and the appearance looks like BETTY LA FEA if you know that series.
His professor keeps on paraning when inside there class his teacher is not that accomodating always shouting and mayabang said her professors co worker. I said to him that why dont you tell her to head of the psychology department it turn out she is the head of the department. With that attitude he said that nobody wants to go to class there only 15 who religiously attend her class. he notice that his professor is obsessive compulsive in every details in the class.
I told him thats its her defense mechanism and shes just protecting her self that you might laugh at her or dont show any respect with her and she might had a bad childhood experience we dont know what really happend to her that aggrviate that kind of behavior on how she treats her co worker and her students.
I told him not to drop the subject attend her class no matter how rude or bad your professor is. i ask him does anyone teaches thats subject he said none shes the only one so he has no choice but to attend.
Those people who act as monster on other people are people who are so bitter inside on what happend to them during the childhood or when they are growing up. there like bitter melon ang pait ng lasa nya pagkinakain mo pero sa labas parang wala lang.Experience that led to that kind behavior beyond there control that some how affects there attitude towards there peers or even to them self jealousy place a big role or even the environment that when your grown up you will to the same thing that you experience maybe on your child or to other people. this can start to developing mental disorder and the best person who could stop this cycle is you. You dont need other to feel the same way you feel during those dark days of you childhood.