Hitomi Hitachi - She Visits Her StepSon's Place After Fighting With Her Husband. part 3

I work in Tokyo and make good money, so my parents must be very proud of me. However, Mom calls me once in a while and tells me that since she no longer has her son by her side, they seem to be fighting more over trivial matters, and Dad's drinking frequency has increased. My dad, who has a tendency to cheat on his wife a little, seems to have had an affair with the mom of a local snack bar, and my mom came to stay at my house.