
The brown hair dude who always break up with the black hair dude didn't got beat up. Probably got into an accident while crossing the road because he was so preoccupied and looking at his phone checking if the the other dude message him. He got poor social skills (which is pretty much obvious in the chapters). His break up habit is his way to confirm if his lover still cares and love him.
Based on the title, I thought their kid go back in time with adult memory to correct all the things that happened on the 1st TL like those baby reincarnation stories. But I was wrong , lol. I hope the kid got those perks just to correct her frustrating mother. Like girl, you revealed to your ex that he is the father of your child and he got an acceptable reason why he was absent for 7 years. You should at least give him a chance to be a father to your kid little by little, if you're too worried that he might disrupt your kid's life. With your poor communication, no wonder the ML got so obsessive.