Slight spoilers kind of
Rotor just told me something VERY interesting
Well in SM, your father gave you the trainer rule book that sits on your desk right? That's the only trace of him
But in USUM, it's shown that your mom took his car with her to Alola for emergencies
That's it right?
Divorce/death was my theory
W A S
Then Rotom tells me:
"Didn't your mom get a letter from your dad the other day? She seemed really happy!"
UM
MY MOM DID WHAT?!
So clearly, they're still together, even though she's def NOT wearing a ring, I won't judge tho
But he doesn't live in Alola it seems, because he mailed her a letter
AND
The mc calls her mom's bed, "Her" bed, so it clearly only holds one person (besides Meowth), despite it being a double bed