His ex wife is named Alicia
She's a bit of a prick, but loves her son as much as Alec does, albeit is not as good a parent as she wanted to be
His son is named Alex
Alex immediately wanted to go with Alec when his parents divorced, but they had to do shared custody at first
Alicia knows how much her son loves his dad, so eventually she just let Alec have full custody because she was tired of seeing Alex sad
Alex still visits his mother from time to time, making sure she is still in the right headspace