The relationship my XAH had with his son was also what made me hold out hope for him. It's what made me fall for him initially. He always seemed willing to do anything for him, to fight for his rights, to defend him, to care for him when the biomom just seemed not to care...it was lovely.
5 years and a baby later, DSS is a teenager, tough to handle, somewhat rebellious, as all teenagers are. As far as I know, XAH and his son's relationship completely fell apart when I left and DSS is now living in Toronto with his mother. I never thought I'd see it happen; they were so close. But DSS got smart and started questioning his father's alcohol intake, and well, I guess XAH didn't want someone else nagging him about drinking.
Things can change. Actually, things always change in that respect.
I'm not trying to burst your bubble Evey. I just hope that your eyes are open to that possibility.