Up for this, I'm still reading it though. LOL Spoiler I'm at 700+ and he still not committed to someone and i doubt he will be, based on his personality.
b Spoiler: Leylin's Romantic side he is never committed to anyone ever. Later on when he becomes rank for, he directly goes to Freya and says you will be my wife and you have no choice! Then he proceeds to absolutely ignore her until he hits rank five LOL after that he gets Freya and Celine pregnant then proceeds to ignore them. Later on, when he goes to the purgatory world and finishes his business there by fucking over everybody, he directly kidnaps two sisters and her friend to bring back to his world. He says he doesn't care what they do but they can be his concubines if they want. He also impregnates a bunch of other women but they are never mentioned by name nor are there children relevant. Melinda also gets a dose of sperm. Freya is his only official wife. Later on, he just does not give a shit about women or his children. He goes into experiments for several decades at a time only to come out for several days then go back inside. After a particularly long 50 or 60 years, he comes out and directly tells everybody I'm going to be gone for several hundred to 1000 years by guys! Yeah he's not exactly the most romantic person. He also directly uses his children, grandchildren and great grandchildren for experimentation. It's beneficial experimentation but more of a I think this will work rather than this will help.