if you don't love someone anymore and you want to divorce that person, it doesn't mean that you hate that person necessarily. Kidnapping is a very serious thing, it's completely normal that she is worried about him. Actually, the opposite, what you are proposing, is the anormal thing. That would become Lily in a terrible person.
I agree with you, even if you fall out off love with someone you ve been together for years. It would still make your heart shatter if you learned something bad happened to them.
But the whole thing was outright bad decision making. It leaves a poor taste in your mouth.
It makes you feel like you are rooting for an OF girl you ve never seen in person. Trying to fix her failing marriage, meanwhile fucking her(?).
Honestly if i had a rough idea about who is the bad who is the good guy, and somehow it involved a family member i would always support family as long as they aren't outright criminal. What father doing, why is he doing it, is still a mystery.
So whole thing looked like you are throwing your father under the bus just to simp on a woman who literally given zero fucks about your situation.
Its just poor writing imo.
But again, as always last episode ended on a cliffhanger(god i fucking hate cliffhangers). So we will see in the next episode. Or not. Because that was whole lot of nothing burgers so far.