The whole group ends up clashing in the end with Cal trying to win back his wife only to get into a fight with the guy his wife cheated with, Jacob who didn’t know Cal was Hannah’s father, and Jessica’s father who thinks Cal is taking advantage of his daughter. Then, as the dust settles from the fight everyone goes their separate ways until Robbie’s 8th grade graduation ceremony. Here Cal reunites with his wife, makes up with Jacob and accepts his relationship with his daughter, and apologizes to Robbie for stealing his love, Jessica, on accident. Robbie also reaffirms his love for Jessica and she gives him the nude photos that were meant for Cal. And all, supposedly, live happily ever after, following their yearlong struggles with romance, sex, and …show more content…
Females are normally the choosier sex because they are the ones who do most of the work during parenthood. They are investing more so they get to be choosier about who they choose to mate with. This relates to the situation with Robbie and Jessica, where Jessica had the option to be choosy when deciding between Robbie and Cal. Although this is not discussed in the movie, I believe that to her Cal had more of the resources that she was looking for in a mate versus Robbie who was just a kid and could not provide for her. The sexes do occasionally converge in their choosiness, however. Male and female convergence depends on context, females increase selectivity as the probability of pregnancy increases. Males also increase selectivity as the probability of committing resources increases, but are less selective if given the opportunity for a low investment reproductive opportunity. This means that males are more likely to have “one night stands” because it is a low investment to them. They can have sex without any repercussion of having to raise a child because of it. This relates to when Cal was being taught by Jacob how to pick up women in the bars. Cal had only been with one woman his whole life, so he was getting to experience what it was like to have sex with no further investment. This did come back to hurt him though, in a later scene when his first “stand” turns out to be