Previously on "Sister Wives" (Sun., 9 p.m. ET on TLC), Christine apologized to husband Kody for feeling neglected.On Sunday night's episode she talked things out with Kody's most recent wife Robyn and revealed that she'd been feeling "so jealous" of her since she joined the family. "It was hard for me not to take it personally," admitted Robyn, but it turned out that the real source of Christine's resentment was Kody, not her.Read More... More on TV Replay