It's so nice to see the boys getting to spend some time alone together in paradise, just the two of them. Sounds beautiful and relaxing. And romantic.

Gwen is totally oblivious to how it sounds when first she wishes Rhys was there and then in almost the same sentence, oh so subtly, asks where Jack is. If Owen and Tosh can do a bit of deflecting while they're there, it will be helpful to the boys. I agree, though, that they could avoid her quite easily by going sightseeing. You know Gwen won't want to take the chance she'll miss Jack so he won't see her in her tiny little bikini.

I'm a little worried that it sounds like Ianto's back to not wanting anyone to know, which is only going to hurt Jack.