In what way does having kids from different women bring more happiness than having equal number of kids from the same woman? He WAS living the dream, maybe, but now he's just another father with 2 (3?) kids. Nothing special about that.
And there are tons of people who marry and have kids then divorce, marry another woman then have kids with them as well. There are tons of people who have half-siblings. Nothing special about that either.
And I'm not so convinved that Fandy is really as happy with the whole situation as she publicly admits. Fertile ground for tension, stress, resentment.
So no, he's not living the dream, or at least not one that is out of reach for the average Joe.