Oh sweetheart x
I just want to HUG you.
Of course you still love him, of course you want your life & your relationship back to when it was good. As I said earlier, it's very hard because you wonder how/when/where it all went so wrong and you think about what you could have/should have done - you think, as you say, about the missed opportunities you had to make it right/better/different.
It's all utterly, utterly shit.
You want to see him, you want to know he's OK and you want to hold him - what you actually want to do is make it 'right' again... to not be going through this.
You have to do what is right for you - but all I can say is that no matter how many times I saw him, not matter what either of us said, it just didn't change the here & now and actully made it more painful because it was just agony being together knowing we'd fucked it up, wanting to put it back together but knowing we couldn't.... we held each other, we cried together... it didn't change anything, it was nice while it happened then it just hurt all over again.
I still miss him now, I still have regrets, I still love him - it still kills me that we fucked it up, because we had so much together, so much time and history, so much shared pain & happiness & we both wanted it to be forever...
He did some shitty shitty things to me and I should hate him for what he did, but I don't have it in me... and I don't think you do either.
I think all we can do is try, on an intellectual level, to accept there is no going back and to minimise the pain.
Don't rush into talking to him or seeing him and don't credit him with too much empathy or 'goodness'.
It is hard on DD, there's no doubting that - but she hasn't lost her Dad, he just doesn't live in the same house and she needs to understand it's not the end of the world.