He actually watched TV with me last night which is odd -it's probably been at least 6 months.

He's flirty and playful with me but still went out today for a couple of hours without saying a word about where he's going. (I don't ask, but it's killing me)

He's bringing me treats and making meals, but then will isolate himself within the house and be all closed off.

I don't know how to act. I'm so confused and scared of doing the wrong thing.
I know not to bring up marriage talk, I know not to pursue, but I'm also supposed to 180 and one of his complaints was that I never initiated physical affection. Am I supposed to do casual touches now? Or is that pursuing?
I really need the advice of a veteran here.