So, if you're friends and loved ones are put off or offended by gratuitous dick jokes, the solution is to convince them to listen to several hours worth of additional gratuitous dick jokes until they come around and realize it's actually clever? I'll get right on that...

... okay, before this statement gets misconstrued, the point I want to make is that the larger context doesn't really factor in. John Davidson is apologizing to his wife not because the dialogue isn't clever, but because she isn't going to listen to every line of it. It doesn't really matter if she's actually wrong in her assessment, she's assessing the situation based on the limited information she's received. I'm sure that years of marriage has taught Mr. Davidson all to well his chances of success should he decide to point out how wrong his wife is, as compared to just apologizing and getting on with his day.