The homecoming queen from jaiden's high school married the captain of the football team right after graduation. after learning that they are splitting up, jaiden has the feeling that he would have predicted this, even though at the time he told his best friend that he could not imagine them apart. this illustrates:

I believe the answer is: hindsight bias
hindsight bias refers to the situation when people overestimate their ability to predict the outcome of a certain situation that wouldn't be possible to be objectively measured. When it come to how long love/relationship could last, hindsight bias will be much more likely to happen since there are too many factors that could influence it and none of them are numerical.