hi crystal-
i don't see why you have to be in limbo again. while it's great that he is admitting a problem, why not continue to step all the way back and get on with your life? maybe he'll get sober and get into recovery. if so, you can choose to be with him again later at some far away sober date from now.
don't let him take your hard earned freedom now with a few quacking promises!
talk is cheap. step back and see what he DOES.
or maybe you really are finished altogether, even if he does get sober.
it's your life. you get to call the shots. take your freedom if you want it.
if you need time to yourself, all you need to do is say to him that you don't know what you are feeling, you want time to yourself, and you wish him the best in his recovery.
you do not have to promise him that if he is sober for one month, you will take him back. who knows how you will be feeling in one month! i wouldn't make any such promises, i would merely state that right now i don't know and i need my own time. you're allowed to do that!
naive