Yes, juggling is a good word. Not balls though, just the gentle art of distraction from what I should be doing, which is working on the screenplay that's causing me problems... I also just recently discovered this site, which I think is awesome, and might have gotten a tad excited about it.. :)
And yes -- the GF is the B story that complicates the A; causally placing the suspicion of the protag very early on, and definitely before the discovery of the craft. There would two phone conversations between Protag and GF (she's in London, he's East Coast USA) -- the first arousing the Protag's suspicions before the discovery of the craft, and the second confirming his suspicions, which would take place after...
Anyway, thanks again for the feedback, you've been pretty generous already on a few occasions.