Convoluted Connections

<while discussing romantic relations>
Friend: Those two would never consider each other; they grew up together.
Me: Yes, how is that?  Looking at my family genealogy, people married those they grew up with and people who lived near them.  And now, growing up together somehow means that we can never think of someone romantically.
Friend: I blame musicals.
Me: ??
(Friend gives explanation; I give counter argument)
Friend: Ah, you're right.  I guess I should stop blaming musicals.  So, in choosing between air conditioning and television, I'll say it's due to air conditioning.