It's not so bad really Dino, Dp's been working such long hours for so long now I'm kind of used to him not being around. He works for himself and is in Europe doing some kind of electrical instrumentation marketing/presentation thingies.
Hope you don't have to take the BBs for long - maybe they'll break the habit and you'll be ok in a few months unless it's a physiological thing? Yes, please try not to worry too much about DS3, he's probably communicating a lot more than you think.
I'm keeping my eye on the current London meet-up thread, but it's really tricky getting out for longer than 3 hours because I can't feed ds in his buggy because he's too slumped and gawd knows when we'll get our supportive one....