Anthony, very good question. My personal feeling is that since you are just as in the wrong as she is, you don't really have a right to the MBR, even though you are no longer in contact with the BFF. While she met OM before she knew about the BJ, she DID see you in action with the BFF in the 3some, correct? It is hard to take the moral high ground right now, even though you want to over OM. The truth is the truth, no matter how you want to spin the timing. For now I would stay in the guest bedroom and let her have the MBR.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018