I need help with writing villains. Like i have so many ideas of villains and they motivations and desires and wants but i dont know how to write them in. Here is a 1st basic example, A hitman wants to kill a boy (his target), my character job is to protect him. My problem is, my character moves the boy into his home to watch over him, the hitman breaks into his home and tries to kill the boy and my character and the hitman gets into a fight....hitman gets away, boy is safe...for now. So the character decides to move him and the boy to his girlfriend house since the hitman knows where he stays. Hitman pops up again and another fight happens...this time the character girlfriend mom gets killed, boy gets hurt and my character gets seriously wounded. At this point like its just repetitive... they keep trying to hide and hitman somehow keeps finding them, they fight, hitman backs away until the perfect time to strike again. Like wouldnt readers get tired of the hitman just popping up out of the blue?..I mean i see it happen sooooo many times in movies and tv shows but idk if thats fine to do WHAT AM I DOING WRONG HERE? can someone help me flush this out?