TMC, happy you find yourself here, sorry for the reason...
Nothing is over until it is over and you have a son with this man so no matter what, your lives are entwined until your end of days...
If you want to look at it this way, you have your entire life to DB... and maybe he'll change his mind... but you may eventually move on to someone new...
So great you are starting to do the work and there are no magic pills... do the work, which is work on you, become the better person you can be and if it doesn't help him realize he'd be a fool to leave you, then you will be a better person and there's no loss in that...
