A guy i once worked with me taught me, "No good deed goes unpunished." That might seem cynical at first blush, but think about why you called her to begin with? You would want someone to call after you if you went missing; you wanted to do a kindness to someone. Those are good motives, but they are kind of motivated by your own loneliness? So maybe think of a way to address that loneliness (or whatever) directly rather than involving a surrogate. Directly rather than transference or projection?

and if you have a cell phone, way easy to block the number.