Why is it awkward between Jeannette and her father at the pub?

Jeannette is left in charge of the house and she is determined to stick to a budget and feed Maureen and Brian. However, Jeannette is unable to resist her father's pleas for money and she loans him $30 dollars within a week. To earn back the money, Rex takes Jeannette out to a roadside bar where he swindles a man named Robbie in pool using Jeannette as a distraction. Afterward, Jeannette feels used by her father.