Care and vulnerability

In the previous chapters we've been discussing care as having two fundamental characteristics: importance to the person who cares and a sense of loss (grief, regret, frustration, anger, and so on) if the object of care is threatened in some way. Back in the first chapter, however, I raised the question of whether caring could happen without the second characteristic. Could someone care about something without experiencing a sense of loss if that something is harmed or dies or disappears? Or, alternatively, is it impossible, really, to care about something without the possibility of a sense of loss as part of the package? In short, does care require vulnerability?