It's like 2 disjointed movies in one; a sad story of hard work and time seemingly wasted; and then it's an unstable/irrational woman obsessed with her ex and hellbent on revenge.
The first part of the movie is very slow, and the narration a bit exhausting. The last part also drags on and on, when the narration occurs less, and Robert seemed to do everything right, even providing financial reparations for the past, and is the rational one. Mel wants too much and is taking out her unwarranted frustration on her ex...it just seems like there could have been a better approach the movie twist, plot switch up, and the reversal of whom the viewer is encouraged to root for.
Otherwise, the acting is good, as well as the cinematography. The script could be improved upon.