Sounds like some good conversations, I don't think you backslid at all! You're opening up the doors of communication wider, and asking for what you want.
So here's some unsolicited advice. It seems that a main issue right now is your anxiety, especially on the weekends. It's my fear that this may become a bigger issue and start to push him away again. Your feelings are valid - you've been hurt and you're very, very wary. But it sounds like this tension is getting to both you and him.
So, this is just my two cents - maybe you're focusing on him and OW too much? You're DBing focuses on you, and making you happy so you can bring that happiness, confidence, and security to the relationship. How about a 180 where, maybe next weekend, you say "I'm going shopping for the day" or something like that, "do what you want, I'll be back tonight." How would he react to that? I bet he'd be suprised and relieved. Come back home happy, ask him what he did, show him what you bought or whatever. Show him how secure you feel in the relationship (even if you don't act as if) and I bet it'll go a long way towards making you both feel more comfortable.
I hesitate to post this simply because I haven't been where you are, so maybe I'm totally off base on this, but just MHO.
Type at you later!! (Tell me more about your new TV!)
