What happened to Jessica and Kim TaeYeon when they were children?

In fact, they didn't interact much from the beginning. The previous pink was because they starred in the variety show Factory Girl together. Over time, their previous relationship is not as good as before. Although they will appear together in variety shows, the time of contact with each other is not as long as that of Factory Girl at that time, and then what we see now. Alas, karma, Taixi Party ~ ~ ~