I understand that the son is upset that his mom isn't "the one" but he needs to accept that his dad isn't dead, meaning she wasn't. Doesn't mean he didn't love her
I love the premise of a (mostly) immortal person who has to blend in with society. The problem is that the character either has to look like he’s aging, or he has to go somewhere else with a new identity - which is becoming harder and harder as technology advances. Anything requiring a background check won’t go well either.
It’s a fun premise, but it becomes unbelievable pretty quickly. Anyone who can think of a solution to all of these obstacles, will have a great TV show or movie.