If the woman is in the position of needing help, she's probably going to have to approach the guy, right or wrong. If she dies of exposure, starvation or thirst, or dies by his hand, she's still dead.

But even if the woman does have to approach him, it doesn't mean she has to stay there, and it doesn't mean she has to completely trust him. Be careful, keep your awareness turned on, keep your survival equipment on your person so if you suddenly have to leave, you can. Don't leave all your thinking and decision-making to him, you still (presumably) have a brain, so keep it working.

Sue