Yes, she is. But she's a gentle MLCer. Just hang in there and keep your hope a live. Be there for her. She does need to go through this transistion...and perhaps she needs to go throughthe mediation too. Whatever happens be the listening ear. This will help her come back to you when it is time.
You are truly handling this very well. You accept your pain, and don't show anger or retaliation. You are setting this up well for a future relationship. I know it's hard [I hadn't known that the kind of emotional pain I felt was possible], but you're surviving well already.