I read your posts put I don't usually post to you. But from what I read, it is possible that she plans to end it with OM. She may have been as we say, "hedging her bets". She may have sent you the e-mail asking if you are 100% committed b/c she wants to make sure before she lets go of OM. Don't know if that is a good or a bad thing, it could mean that if you had said you weren't committed she would keep ahold of OM as a back up plan. Again, I am making a lot of assumptions so you don't need to listen to me! It just seems maybe she was getting up the courage to end it w/OM and wanted to make sure you were going to be around for her if she did.......
