Elise was surprised by her husband's straightforwardness, but she didn't dislike it, because she missed him badly too. So, when he kissed her, she was secretly feeling overjoyed.
She welcomed his kiss, not only she because loved him so much, but seeing how he still desired her after the tragedy, it also made Elise feel loved.
Maybe Loriel didn't necessarily love her yet, but what mattered was how Elise felt. With him taking the initiative to ask her to take a bath together, and now he started kissing her passionately, Elise felt wanted and desired.
This helped her pained heart to heal more. It had been months since they last met and became intimate. She missed him, and it made her feel touched to see that he missed her too.
Did he miss being intimate with her? Sometimes, her nights were so cold and unbearable, she would think about him and wonder what he was doing.