Send her an email, just to catch up. It will make you feel better about the situation because as it stands now, this is holding you back from pursuing other relationships. You either need closure by talking to her and accessing her feelings. If you don't ever get this, you will wonder for the rest of your life. As for the dreams, trust me it still happens to me and I got back with my wife. I still dream of her with the OM. It hurts, only time helps to heal you but the scar will always remain. God Bless You!