Appreciate how they try to fuse romance and mystery thriller genres. Though the thriller aspect is not perfect / lacking, the first and root reason why the main characters got close is caused by the mystery of the villain.

Both of the main characters sufferings in their childhood and how they are trying to heal from all those dark past is so heartwarming though the process is pretty draggy.

Psychologically, it also reminds us that it's okay to be weak and fragile. Not everyone is able to be as strong and hard as rock. Embrace it and always find a way on how to talk about all of what you feel cause bottling up all those ain't good for your mental.