So he can do just whatever the hell he wants to and Jesus will forgive him, but you're the one without morals? I just don't even know what to do with someone who couldn't see the irony there. It sounds like his definition of morality is just to feel guilty about the stuff you do, not actually bother to be a decent person. Anyone that takes a course of action with the expectation that they'll be forgiven for it is about the bottom of the barrel as far as morality goes.
If you think about it, it makes perfect sense that an atheist (at least a thinking atheist, not necessarily those that are atheist by convenience) would be more moral than a theist - atheists have no expectation in some sky daddy that'll come along and make things right, so we need to try to get it right ourselves. Theists assume that if they make a mess of things because it's easier/fun sky daddy will come in and fix it and forgive them.