Oh dear. OP a lot of your current situation is what I went through with my STBXH. The 'hysterical bonding', the being best friends again bit, the utter longing to save my marriage without actually looking it in the face, my Hs claims he had cut all contact, him comparing it to a drug / an addiction that he just had to overcome, the slow start up of his contact with the OW again, his need for contact for 'closure', I even had my own thread on here and was quite unwilling to listen to negative posts just as you are etc etc.
Well, surprise! The affair was never really over, we are now about 9 months further on, starting divorce mediation and he is openly in a relationship with the OW and my poor family is in ruins.
I feel very sorry for you, and know how painful this is. I still have lots of times where I live in a dreamy fantasy that I can pretend to myself that we will somehow get back together, that I can just live in denial that this ever happened. When you love someone and are so used to loving them, you will make any number of crappy false deals with yourself to make you think that everything is ok.
I would be very very surprised if your H is not still having his affair. Sorry OP. Even if he isn't physically shagging her, he is still utterly betraying you by meeting her and texting her.
I really feel for you, but do think you need to tell someone in RL, or get counselling or something. You seem to just be living in total denial. Your last post (about him still being in contact) just made so little sense in terms of your feelings of happiness about it etc. That is why you've had so many strong responses. It really can be easier to see what is going on from the outside sometimes.
Good luck, and get emotional support from someone other than your husband, regardless of whatever you decide to do in the future.