so lore wise apparently at some point he left the travelers and rejoined starfleet thus Nemesis. Then like according to either Picard or Prodigy he then left starfleet again and went back with the travelers. Janeway even tells Wesley he needs to visit and be with his mother more often so he takes that advice from the Admiral and just…doesn’t bother helping out in his mothers greatest time of need. I mean he even meets Jack in Prodigy and just, apparently, couldn’t care less.