Well, Monster began to learn for himself and at the same time haunt Frankenstein. But why haunt the man who left you behind? Well, it seemed like Monster had been abandoned and attacked so much that he couldn't help but feel unsure of himself. He began to question why he was created. Maybe that's why the monster started haunting Frankenstein because Frankenstein created him. The monster had no reason to exist, so he found the reason to be his creator. Monster wanted his creator to feel what he had felt during those two years and understand what it felt like to be alone. This all goes back to Frankenstein being a parent. This also shows what happened when he “violates a primordial contract, the universal contract between creator and created, which specifies that the father owes his children the means to live, which the creation requires to raise them. Frankenstein can create but cannot nurture” (Vargish 329). He points this out because the monster might have been able to overcome it if it had had that person present every step of the way. If Frankenstein had to mentally feed him, the monster probably wouldn't have killed so many people. Look at the end, when Frankenstein dies, Monster is heartbroken about it. It has lost its reason for being. He has no idea what to do with his life without his father. So maybe the reason Monster chose to use violence is because it was all he had experienced and all he fundamentally had