Who’s wrong here part two

A married wife who has been married with this man for two years they both have children from previous. The husband has two children, whose nine and six the wife has a son who is seven from the previous. The father of the two children wanted to take the family on vacation to Disney. The wife was excited she told her son seven years old he’s never been to Disney so he packed everything up. He told l kids at school. The wife went to go added information of her and her son on the reservation found out that the husband only paid four tickets for him her the husband, son and daughter, but not for his wife son. The wife thought it was a mistake glad about it. She confronted him. He said it’s not a mistake. He’s not paying for her son’s ticket because it’s another man’s job. He called his mother-in-law to watch her for a week she was excited the Mom however, canceled everything.