ballast, thanks for more details around that. Yes WWs always say there is no hope. My W told me there was no hope for us through all of January and most of February. But here we are in R now. So while your sister says that now, she is in the limerance phase with OM. That clouds their judgement and makes them feel as if nothing will ever be different. I would encourage you to encourage her to do nothing rash. Give it time. OM may turn out to be a complete jerk in the end. I agree BIL should have done counseling but that is a common mistake we LBSs make. My W had requested it at various points over the years too. Sometimes we don't realize how serious the unhappiness is.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018