I know I've asked before but do you think I should limit him when he can come over?
I wish I had an answer for you. I think what you really need to consider is how is it for you? Do you feel better? It doesn't sound like you do. I know you're thinking that "maybe, just maybe....", I just don't see it as a real positive in your life b/c even with him there what's your focus? Is it how soon this may all be over? How much you'll miss it? if it is, then you're telegraphing that to him. Believe me, I understand. Been there, done that and bought a number of t-shirts. <Sigh>
Could it do for you something it din't for me? Sure, anything is possible. Put some thought into what's best for you right now and in any given moment. It's hard and even when you think you know what's best for you, you may not always do it.
Just keep posting and venting away. That does help.