You need to immediately change that posture. You need to show her no affection whatsoever, only common courtesy. You need to take her at her word and not allow yourself to indulge in fantasies about her coming back. When she goes you need to make sure she takes all of her stuff with so you can begin remodeling for your bachelor pad. If she leaves anything behind, you need to leave it on her new doorstep in the rain. You need to get the best attorney you can and push aggressively for an early disillusion date. After a reasonable amount of time (one year max) you need to actively seek women to date.
The ironic thing, doing all of the above is the only chance you have to save the relationship. And if it doesn't (and it probably won't), it's what you need to get on with enjoying the rest of your life.
I know all this is counter intuitive and you won't follow a word of this advice, but five years from now, you will wish you had.
I will certainly consider all that. Thank you.