Inpain....your H saying that to the kids just sounds like if he feels guilty (and he should!) and is trying to convince them so that he can ease that guilt.
Yes! I think you're right there. My H has always liked to appear squeaky clean and I'm sure the guilt must be eating him up inside. The only person he's fooling is himself. Our children are only 7 and 11 but they're not buying any of his, "It's no different for you." rubbish.