When someone proposes to you, you want it to be because they genuinely want to spend the rest of their lives with you. But "Let's Get Married", which is essentially the song-form of a marriage proposal, implies that the guy wants to do it because, well, it's about time and also just...meh, sure, why not. Would you say yes to a proposal that included the line "We ain't gettin' no younger, we might as well do it"? We might as well? SWOON. Also, instructing her to "meet (you) at the altar in (her) white dress" implies that you're not planning to see your fiancee until the wedding day. Do you even like this person, Jagged Edge?