This was a very intimate expression of affection. One Zale had never done to anyone other than his mother or sister. He had only done it now because he couldn't think of any other way to prove to his wife that she had his favor.
He wasn't like his father. He had no interest in collecting beautiful mermaids. All he cared about was keeping the kingdom running and that unfortunately included providing an heir.
Aila didn't have anything to worry about but she was right that she didn't know him. What little she had seen of him wasn't the most flattering. He could see why it would have caused her worry but he didn't get rid of merfolk arbitrarily! He had good reason for what he did.
"I haven't? Truly?" she whispered.
Zale sighed as he pulled away. "No. I apologize for causing you anxiety. That was never my intention."