I love that. It shows me that Ianto is his own person regardless of what Jack thinks. Ianto must surely know that Gwen will screw it all up and Jack will find out but he does it anyway. There's a nice progression there. Ianto tries to talk to Jack reasonably and when Jack doesn't see the wisdom of Ianto's POV, Ianto goes behing Jack's back. I've been worried that being 'Jack's loyal soldier' might meant that Ianto would defend Jack even when he shouldn't, but this scene reassures me on that point.

It's also amazing that intercut with that is Ianto smileyness over the cheating at naked hide and seek. What a range my boy has. He is quite lovely. I am his slave, I must admit.