No Thatsnotmeinthemirror you are definitely not being unreasonable. Glad to hear that you are usually quite assertive. Use this to set boundaries with this person, tell her when you are and are not available, what you can and cannot do to help her, when and when is not convenient to ring you. If she is always asking you to do things for her ask her to do something for you, can you put my bin out, can you pick up some shopping for me. If she drives ask her for lifts. She will soon get fed up when she realises she cannot manipulate you. Keep strong and hold her at arms length.