Except Emily wasn't just "hesitant", she was outwardly avoiding him for two reasons:
1. Anger because his parents actions (which we don't even know if he was privy to)
2. Andres' ultimatum to Emily to never speak to, or interact with Santi
Andres and Emily didn't divorce just now. That was when the MC was still a kid, yet enough time passed from the parents' ultimatum. And Santiago did contact Emily then, it was precisely why her and Andres divorced,
and he already knew of the MC. Around that time, Emily began having trouble raising MC. Did Santiago come and help, with Andres not being in the way anymore? No.
Emily sent MC to Andres.
her decision to raise her child
It wasn't
her child, it was
their child! But Santiago gave up, and he who gives up when it's hard doesn't deserve the end result.
up until the point he punched his "son". Lost all respect for me then and there and any chance of reconciliation. Also the way she treated Emily in the past.
Yeah, that's unfortunate. But the MC wasn't a kid anymore by then, so it's not
that bad, Andres was punching his equal, not someone weaker. Besides, I'm giving Andres
a lot of leeway for raising him.