A Man’s Apology To His Future Wife

I don't think it's customary to apologize to your future wife before you get hitched, but Nabeel Khokhar Bhai of Pakistan rented this billboard to apologize to his "princess." He calls himself a "poorly-endowed slimeball." Where do I recognize that phrase from? Oh, Emily's billboard message to cheater Steven. Suspicious. Either Emily copied Nabeel, or these billboards are part of the same conspiracy. [In Flex We Trust]