It's been a while since we've seen Hiroki, and now he's back on his quest to find his wife in another world. He's obviously been hinting that they've split up, and we're not surprised. Hiroki's still in love with his wife, and they're still in another universe, so he must still have feelings for her. Okay, so maybe he doesn't have any feelings for you, but he sure does have a crush on you. We're guessing that's why Hiroki wants to marry you.