welcome back arashi!
if you haven't seen the jason mcguire storyline(which includes the episode set in 1949 when we see what happened between liz and paul the night he tried to leave her)you should give it a watch.it's excellent.
as for david i'm currently watching the leviathan storyline and david just seems too old to act the way he does.
the scene where david and amy go to the antique shop to "play" with alexander really rings false to me.an adolescent boy doesn't "play" with small children.his scenes with the similarly aged michael seem more realistic.
i also don't think a boy of that age here would still be in the charge of a governess.it must have made perfect sense to put kls in this role but by this point david is too old.
b.t.w. david had two of the most seriously foxy governesses ever.do you think it affected his perception of women the rest of his life?in his choice of girlfriends did he always choose miniskirted,fall wearing,perpetually perplexed orphaned young ladies?was he always trying to "save" them from the type of unfortunate fates of the girls in whose care he was supposed to have been.
