In answer to you question. You are in the early stages of this, you still have contact, right now you still have a relationship, maybe not the one you want but you do have one. He has told you where his head and heart are at even if he doesn't exactly know where he is. The above are all gifts to you.
Me I did the begging and pleading for months before the relationship ended. Every irrational thing I tried, every ill considered conversation about the relationship, left him feeling ambushed and emotionally manipulated. I pushed him to far outside my circle of influence that he never stepped back in it.
So many of us here, are living with no or minimal communication with our ex and spouses. I would give anything to have be given a glimmer of the light you have right now.
So slow down and regroup and take the next step in the most considered way possible. Read DR/DB. And as Cadet says you man has given you the "GIFT OF TIME" please use it.
On my thread you talked about knowing you can survive in fact you said "thrive". So do it, act "as if " you are already there. One of your goals right now is to attract this man back. How did you attract him in the first place? Oh I wish Susana4 was around. Read her threads, she isn't around at the moment- hopefully she will be back soon with a glorious update. Susana has been working on saving her marriage which is about 2 maybe 3 and bit years old, and has been rocking the attraction factor.
As I said slow down, breathe, regroup. You have this Tulo.
Hope some vets and more experienced newcomers jump in here soon!