The FMC, Esther, was a trip. Let me explain.
Esther and Jordan are childhood friends and neighbours who grew up in the same church. When Esther is 16, she learns that her parents are planning to marry her off to a much older member of their church, so she decides to derail those plans by losing her virginity to Jordan.
Unfortunately, due to a misunderstanding, Esther and Jordan lose contact with one another, and she ends up having to raise the daughter that they conceived as a single mother.
Fast forward 8 years, Esther and Jordan run into each other at a hotel, and this is where the majority of the story takes place.
While Jordan went on to become very successful, Esther struggled to carve out a career as a real estate agent and juggle motherhood. She mentions a few times that she has worked really hard to get where she is, but then it's noted in the story that she has a 1 bedroom apartment and that she sleeps on the couch so that her daughter has her own room. (False pride?)
Esther is also irrationally prejudiced and bitter towards Jordan. Whilst I can understand that she felt abandoned, they weren't in a relationship, and he wasn't aware of their daughter.
She seems to begrudge his success, money, and gender as she makes a few comments that reek of anti-male sentiment (e.g., Esther refuses to let Jordan meet their daughter until he agrees to some strict rules, like not revealing that he is her father and not taking her picture and putting it on social media because, "Men in business do better than childless men. I won't let you use my daughter in that way." She also tells him he was lucky to be "born with a penis." WTF???
What kind of sexist, mental gymnastics brings someone to that deluded conclusion???
In addition to the above, Esther very much expects to have the first and last say on their daughter (fine) and their relationship. She doesn't want Jordan spending money on either herself or their daughter as she feels it would be a means for him to manipulate her (she tends to assume the worst about him in every scenario).
If I were Jordan, I would have petitioned the court for joint legal and physical custody. She was a total train wreck.