I liked the Left Behind series, but I had some of the same questions as you, SaintTexas, like the part about electricity. I can see someone being smart enough to devise a firewall (or more than one) against detection online, but I was curious as to how the Trib Force managed to get TV and other "comforts" like electricity. I wondered the same thing about how Chloe built up a store of black market items. The books don't really go into detail. I guess one might use a barter system or donation system, such as company owners who become Christians giving part of their stores. I guess, also, that electricity might be generator, well, generated, but it seems to me that a generator is a short-term solution. Maybe David and Chang, who were the computer whizzes at Babylon that ran things worldwide for the TF, routed electricity surreptitiously and hid the wattage output somehow. According to the books, those guys could do just about anything with technology.
As for Chloe and Buck, maybe I'm wrong, but I seem to recall their debating on bringing a child into the world during the Trib. I think, though, that two other characters (can't recall their names right now), did debate on whether or not to start a relationship then. It's possible that it just came naturally to Chloe and Buck through their common relationship with Rayford (Chloe's dad), and instead of being a distraction, their union made them stronger because they could encourage each other.
Romanticized? Maybe a bit.
"Oir is leatsa an rioghachd, agus an cumhachd, agus a gloir, gu siorraidh, Amen." ("For Thine is the kingdom, and the power, and the glory, forever, Amen" -- Scots Gaelic)