Some of you may remember the issues I've been having with future sister-in-law/BM. I'd finally come to terms that she's not going to change and to just try to ignore it to the best of my ability. However, last week things really took a turn for the worse. For reasons unbeknownst to FI and I, she is no longer speaking to me/us. Flat out ignoring. The correspondence I've been trying to have is not wedding related so I'm not asking her to do anything for me; it's just pleasantries, trying to be nice (sending her a birthday gift), etcetera. There really is no rationing with her we've all learned. I have no intentions of kicking her out of the wedding (considered it months ago) but what can I do to keep things from going WWIII at the wedding? Just worry about myself and let her dig her own hole?