Is this type of hate normal?

Sorry. I had to edit my question.

A guy met young woman and her family. He just moved in her area to manage a volunteer group. He has a wonderful wife. They start to make good progress with the group. The guy is friend with young woman’s aunt and sister. The guy and his wife compliments young woman on her good conduct and cheerful personality. Sometimes the guy tries to offer assistance to young woman. The young woman accepted at first. However, as time goes by, young woman declines offers, not wanting to seem needy and be a burden on guy and wife. Later, young woman live alone. As times goes by, guy starts to draw away in his communication with young woman. Then the guy starts to seem sad around young woman and ignores her. Then later, new member join the group. It’s a female. The new member likes a lot of attention, and soon enough, makes friendship with guy and wife. Now guy feels he has good friendships. The guy starts to cause division in the group. The guy keeps close friendship with new member and returning members that is friends with new member. Yet, there are times when he would just go up so close behind the young woman, and staring over her, which is very strange. The guy tries to exclude former young woman from group activities and giving her a hard time, while showing favor to his friends alone. The guy’s personality starts to show strange to some group member. The young woman starts to keep a low profile. The guy seems confused why young woman is so quiet. What could possibly cause guy to be like this? If they continue like this, what could end up happening?