Answer:
Because it's human nature.
Explanation:
A grudge may arise from many human emotions. Jealously, sadness, anger...etc. When we get over one, it allows us to heal and when we don't, it can turn worse. For example, your really close friend forgot your birthday and now you have a grudge against them because you are hurt, angry and sad. They were your friend! but you feel betrayed and thus, you hold a grudge against them and once solved, you'll either get closer to your friend or have a damaged freindship.
Source: https://www.psychologytoday.com/us/blog/fulfillment-any-age/201710/why-people-hold-grudges-and-what-do-about-them
Answer:
He felt bad because they had started the fire
Explanation:
According to The Outsiders by S. E Hinton, story is told of two juvenile delinquents Ponnyboy and Johnny who are running away from the law. While they are in hiding, they inadvertently start a fire at the church where they have been hiding with a cigarette.
Johnny goes in with Ponnyboy and rescues the kids from the fire and Johnny suffers a broken back after a lumber of burning wood fell on his back.
Johnny's emotions during the fire was that he felt bad because they had started the fire.
There is no need of comma in this sentence because there are only 2 objects in this sentence which were separated by and ok....