If you were 17 again.
If some type of scenario similar to this film occurred but instead of living in today's time in the body of your old self, what if you actually went back to that time in your life but retained your spirit, your knowledge and memories of your full life so that you knew what things were going to happen.
If you are not happily married or let's say you're divorced BUT you have kids.
Would you avoid the relationship with this previous partner because you know it leads to unhappiness or divorce with the knowledge that you'd never see your children again if you don't mate with this person?
Would you re-do the same thing so that you had your children or would you flee unhappy relationships in order to try and have a happier love life and forgo ever seeing your children you had in your first time line?