i think its very obvious they are not happy with certain aspects of the lifestyle but they did choose to go through with it and do choose to stay with it. I honestly don't have issues with it except if its a child bride scenario. I think they were happy with three and this fourth one is just a bit much more so for Christine seems to have the most struggle. I can't tell if its because she was pregnant and just had the baby (so hormones) or that she felt she was the youngest "newest" one and liked it that way.

As far as the season finale not sure why it was so soon. Perhaps TLC was jittery over the program and only set aside a certain amount of episodes. Robyn's ex (fourth wife) is not too happy about the kids being filmed and I am surprised that he wasn't made to sign a contract allowing that. So who knows if its coming back.