Yeah, I'm just not seeing this at all. I mean, you're missing at least one crucial time (you need to rewatch episode 104! I suspect you'll get a different view after that). And there's just no indication that there's been no sex apart from that. And as for having sex for Paige's benefit--those reaction shots were not the faces of spies that had successfully put one over on their daughter, that was annoyance at being interrupted and annoyance that she'd done something forbidden.

I mean, I could buy that they stopped having sex for a while when things started to go south between them and they had all those trust issues, but now that they're back together for real, I'm sure there's plenty of hanky panky going on. ;)

-J