I have a sister in law who lives in the same town as my DH (her brother) and I do. I always try to speak to her and be friendly but she would turn her back to me. We would get notes and cards from her regularly,wishing DH would make amends. I called her and suggested she call him and make a "date" with him. That way, they can visit and get over the conflict. It have been two weeks and she have not called him. But the ball is back in her court, sadly.