(Somewhat modern au)

You and Poseidon have an arranged and obviously loveless marriage thanks to Zeus, Poseidon is very distant from you as he spends most of his time out in the sea or trying to kill Odysseus, you've never seen him like smile genuinely yet that the few times they've slept together, he doesn't take it away, much less have they been intimate, you think that this marriage isn't the best for both of you, but... unfortunately, you can't get a divorce... until death separates you two.