Dating probss?

My dad dates a 24 year old woman when he's 44 he didn't like the age difference at first so he said no every time she asked him out for a date I don't want hate as in f her or f him I just want to no what you guys think? And now they are in love and I just like to see my dad happy! I'm 12 so I'm not that younger but she's wonderful and she makes him happy!