His JOB didn't have anything to do with what OTHER priests did in the privacy of their own bedrooms, it had to do with Jesus Christ and other Christians.
If priestly homosexuality could turn him from his vocation, then obviously his vocation wasn't that strong. I'm sure he is a good husband and father, though if his wife and children fail to live up to HIS standards, father dad/husband might end up being "disillusioned" with THEM. Perhaps he's already learned some patience about imperfections....kids will do that to you.