Parker would want to visit again tomorrow, but she won't want to watch the blood-drinking, particularly. She is not good with people dying anyway, and if she gets some reassurance that he *will* be drinking that, come hell or high water, then it's something she'll happily miss. But she'll want to be in the Clinic, out of sight, to get confirmation that it worked-- or that something else has to be done (which is how she'll be thinking of it).