Again, he had a fair point. It must have hurt him to say it out loud. She knew that he loved her and desired nothing more than for her to return it. If it was as simple as willing it into existence, she would've already fallen deeply in love with her husband. Since she returned from her year on the run, he'd done nothing but proven to her over and over again how much he cared about her, how far he was willing to go to ensure that she was protected. He'd murdered the Dark Lord for her sake! That was proof that he loved her, valued her presence in his life.