As they say.... video proof or it didn't happen the way you say it did. If you and your friend are so good that you completed it with absolutely no help from a third, why were you on LFG looking for help? If you're one of those people who gets his rocks off kicking people at the treasure room because of low grimoire, fewest kills etc, just man up and say that. No need to make yourself out as the victim to justify being a dick.