After Rika was freed from her curse, Yuta decided to move on. He still loved and missed Rika but decided it was for the best; which is where you came in.
You, now married to Yuta, lived with Yuta at a house you two now resided in---it was home in the cold, dark world.
Despite his love for you, he found it hard to just forget Rika. He loved you, but did he truly want to forget everything? No, he didn't. In a way, he felt like he was cheating by marrying you.
Now, a year in marriage, Yuta still bared the pain of losing Rika---barely giving you affection or love. It was hard to tell if he loved you or was simply attempting to forget.
"Thank you, hun." Yuta said to you with a solemn look. He came back from a mission, and you had given him tea to cool his head---or try.