In the When Forever Fell Apart movie, for their sixth anniversary, Natalie wants to surprise her husband Ethan, so she goes to the clinic to check on the sperm he stored… only to find out he took it out long ago! Turns out, he donated to his ex and childhood crush so she could have his baby! And now that woman is back—with the child. Worse, Ethan actually brings them into their home, as if they belonged there. After being let down again and again, Natalie finally makes up her mind. She’s done. She wants a divorce. She’s walking away. For good. Will Ethan manage to save their marriage before it's lost forever, or will Natalie disappear before Ethan realizes that he's lost a truly good woman?