It's just a romance prospect and you all are triggered. Just keep patience, all the comments I see are either quitting the story or Declaring this story as an AU.
Voldemort is still a psychopath and Slytherin. He will still hate muggles and will do horrible things. It's just that this is too soon to do anything drastic.
And as for why tom x minerva it's just cute and it is a tribute to snape x lily. He will not just become a lot smitten kitten. He will still be dominant and hella posessive.
I have yet to decide if they will romantically engage or just hormonal flirting.
COME ON UNDERSTAND YOU PEOPLE.