After the transfusion of blood from Author to Lucy, Van Helsingborg said what?

Do you mean Chapter 10? From the text:

When all was over, I could see how much Arthur was weakened. I dressed the wound and took his arm to bring him away, when Van Helsing spoke without turning round, the man seems to have eyes in the back of his head, "The brave lover, I think, deserve another kiss, which he shall have presently." And as he had now finished his operation, he adjusted the pillow to the patient's head. As he did so the narrow black velvet band which she seems always to wear round her throat, buckled with an old diamond buckle which her lover had given her, was dragged a little up, and showed a red mark on her throat.

Arthur did not notice it, but I could hear the deep hiss of indrawn breath which is one of Van Helsing's ways of betraying emotion. He said nothing at the moment, but turned to me, saying, "Now take down our brave young lover, give him of the port wine, and let him lie down a while. He must then go home and rest, sleep much and eat much, that he may be recruited of what he has so given to his love. He must not stay here. Hold a moment! I may take it, sir, that you are anxious of result. Then bring it with you, that in all ways the operation is successful. You have saved her life this time, and you can go home and rest easy in mind that all that can be is. I shall tell her all when she is well. She shall love you none the less for what you have done. Goodbye."