'19 Kids and Counting' - Jessa and Jill Duggar update

Rumors are suggesting that a feud is brewing between the famous sisters, Jessa and Jill Duggar. What could the reason be for the supposed fight?
According to reports, Jill has "unfollowed" her younger sister, Jessa on Twitter, as well as Jessa's husband, Ben Seewald. Jill's Twitter account shows that she only follows members of her family, and Walmart and Fox, who have Twitter accounts. It is noticeable that Jill's Twitter account shows that Jessa and Ben's Twitter accounts are not in her "following" list anymore.
Entertainment outlets have taken this to mean that the 23-year-old pregnant Jill has had some kind of misunderstanding with Jessa. This would come as a huge surprise to those who have been watching 19 Kids and Counting, since Jessa and Jill's relationship has always been close.
However, misunderstandings between the Duggar sisters is nothing new, at least according to the eldest sister, 24-year-old Jana. In the biography titled "Growing Up Duggar," Jana recalls how she and Jessa would always fight when they were children.
Jana said parents Michelle and Jim Bob tried out one solution to the constant fighting that was to make her and Jessa share a bunk bed. It didn't work, as Jessa would constantly kick Jana's bed every night.
Jessa and Jana eventually stopped fighting and grew closer as they grew older. Now that the older Duggar sisters are moving on to the next chapters in life with marriage and starting families of their own, a rift between Jill and Jessa would be surprising indeed.