Do you think the longer you go, the harder it will be to hear if he DOESN'T want to come back??? Perhaps it would be better to hear now, rather than months on down the line. Then you'd have to start grieving all over again.
I think I'd want to know it now, and get it over with so I would only have to grieve once.

You ARE grieving right now, and you're grieving the loss of the marriage. You're grieving 5 years of your life. Grieving takes time, and you've got to be patient and good to yourself.

I wish you the very best. Take care & God bless. Hugs, Lee