I was about to head off to bed and saw your post and thought, I have to respond! Why? Because I pretty much did what you're thinking of. I did give my H space, but he thought I didn't "want him" anymore so I showed him that I did. It didn't make sense to me to GAL too much by myself. I did some, but I spent lots of time with my H.
I also gave him lots of love and affection. Yes, it was hard because at the time, he was still involved with OW, like your H is. There were times when the last thing I wanted to do was be all lovey-duvey, 'how was your day honey' -- so on those days I backed off (for my own PMA). But all that love and affection was good for me, too. It really helped us to reconnect.
So, I can TOTALLY relate to where you're coming from. One huge difference between your sitch and mine is that my H was still home. We never separated. We talked about it but I told him I didn't want him to leave (I decided it was better to have him here). I tried not to think about OW -- detached, detached, detached!
You definitely know your H so why not continue to give your H the attention and -- you will need to prepare yourself for a bumpy ride -- which you've been on already! Just remember baby steps. I think the kiss on the check was good!
