Ovr, we are in somewhat similar situations. W and I just started MC.
As difficult as it may be, I am trying to focus on her needs and her reasons for leaving. There will be time to address my pain "later" ... if I am fortunate enough to be given the opportunity for a "later."
Trying to listen and understand without judgment, without expectations for any particular outcome.
Trying to internalize this frame of mind: - accept her emotional reality; - affirm that I understand how my words and actions led to her emotional reality; - celebrate her courage for willing to sit, talk, and enter into a vulnerable state despite her fears and distrust.
Patience, I tell myself and I tell you. At each session, my only goal is to defuse any pressures and fears so that she will be willing to meet for a next session. She is a precious, fragile rose that cannot be forced to open up to me. If she chooses to trust me again, it will be on her own terms.