He won't add me to his FB friends...?

[Kitty]

I would guess D. He probably hasn't told his ex-gf that he's moved on and is dating someone else. He might just be waiting for the right time to tell her and would rather it come from him directly rather than her finding it out on FB.

I'm in a situation like this myself. My recently ex-bf is still on my facebook but I would never want to hurt his feelings by flaunting the fact that I'm now dating someone else. When the time is right I'll tell him.

Sounds like you guys have a great blossoming relationship so I wouldn't worry about it too much at this stage. Don't show him that you're upset about it as guys hate that.