Yes, to you and me Koss looks like a shithead, but suppose:
1) You have no idea about 'true love' because the concept isn't understood or valued on your planet.
2) You think it is a child's obligation to honor his or her parents' wishes and that a betrothal represents an entirely reasonable and customary wish.
3) You assume that most couples begin as strangers in marriage.
4) You know that by marriage you can rehabilitate the reputation and livelihood of a worthy woman who is presumably a family friend or ally.
5) You might even be able to resurrect the reputation of her somewhat notorious daughter, if possibly at some cost to your own.
5) You find said notorious daughter
quite intriguing.
6) You're convinced, along with everyone else on Vulcan, that said notorious daughter probably just needs a good nudge back toward Vulcan norms in order to achieve a proper fit in her own society.
7) One of these days fairly soon you know you're going to wake up needing some booty really BAD.
