AITAH for leaving my wife and kids?

AITAH for being unhappy about my daughter being punished for not “standing up” for her teacher?

AITAH for thinking my husband was cheating after he suddenly became very concerned with his fitness and hygiene?

AITAH if I allow my absent father into my life now that my mother died? He never wanted to know about us and I don't want to betray her and accept him. But I am 15 and alone.