Think it should be simply broken down to get the mother's character she broke up with the mc to not be a burden to him and chose not to contact him for 17 years while being a single mother to raise her child. She only reached out to the mc since they were pretty much homeless and guess she had no one else to reach out to for help. Is it a bit shameless of her going back to her ex boyfriend she dumped in her moment of need sure but seems she has no other options and true caring parents will swallow their pride for sake of their children. I'm sure if the mother had no child and was about to be homeless she would of chosen to be homeless than be a burden to the mc but since she has a child to look after she can't do that. Also like you said its not like the mc is being forced into this arrangement something he allowed.
As for people keep giving hate comments to the mom they either trolls or want to hate read this series for whatever people should just ignore them.
That's also ignoring Takaharu's role in things.
They were only dating for about three months; she was going through some stuff at that time, but he was oblivious and not paying close-enough attention because he had his head shoved into the mountain of work he had pushed upon him by others in his department, along with just generally being a closed-off guy.
Eventually,
something occurred in Kyou's life that required she drop out of college. She never elaborated, but broke things off because she knew how stressed and busy Takaharu was, and didn't want to overload him.
And for his part, Takaharu told her in their last phone conversation that, no matter how much time passes or where they both are, she could come to him for help if she needed it.
And Takaharu was
devastated when Kyou left his life. Lost all motivation to paint and draw, sunk even further into himself, developed chronic depression, shut himself away in his grandmother's house.
The moment Kyou showed up again was when the Sun came back on in Takaharu's world. Yes, Kyou is absolutely making full use of the standing promise from Takaharu, but it's not like he's been browbeaten or coerced into taking her in.
And you did mention it, but to reiterate: he
wanted to. Desperately, even if he wouldn't immediately admit the reasons to himself. Even in their short time together and 17 years apart, they left a profound impact on one another--the sort of bond that brings people back together across time and distance no matter what.
It's
really not fair to Kyou to try and make her a villain or bad person in this series. The number of people who disparaged her simply because she "dared to have a kid with someone not the ML" and treating her like cheating trash really does speak to some of the problematic elements of the manga community when it comes to the portrayal of women in Japanese comics.
This isn't me attacking you specifically or anything -- it all just bears repeating because both here and Reddit have seen the same inane "discourse" nearly every chapter that's been released, and it's honestly depressing because this series is just so good, from the plot to the art to the characters.