"Lady, thy brother is my husband. We've waited so long for thee to come -- thy presence is the only thing missing from his happiness." If she were Clar, the only other sister he's known, he would sweep her up in his arms, or-- but when he first met Clarissant she was shy and stubborn and refused to speak to him until he won her with the feather of an eider he found on the shore. Perhaps Ophelia is like that too?