This story did not make any sense to me. Prior to going back in time, they both file for a divorce and when they wake up back in college, there is all this jealousy factor going on.
Logically their divorce doesn't make any sense and I couldn't connect with their initial dilemma which was lack of appreciation of each other.
A powerful story is when the characters transform and their lives have the potential of being better when they have learned the lesson.
I couldn't see how they transformed and what lesson they learned.
For me, Familiar Wife is a much better story along the same concept.