You asked why, if we evolved from apes, apes still exist. I explained that to you. What more are you looking for, or do you not understand the explanation? What about that explanation does not make sense?
The strategy that she is using is a variant of the Nazi propagandist Joseph Goebbels' dictum that "If you tell a lie often enough, it will eventually become the truth."
For TexasKate, however, she has altered the Goebbels strategy to more along the lines of "If you keep asking basic questions about evolution (even after they've been easily answered), people will eventually doubt the entire theory."
This strategy is also referred to as "manufactroversy," or the manufacturing of controversy, where someone simply creates controversy where there is none, in order to cast doubt on the topic. The tobacco companies were notorious for doing this starting in the 1960s when scientists realized how bad smoking is for people's health. Yet, the cigarrette makers would always find some "expert" somewhere who would claim they weren't. Likewise, creationsists trot out some so-called "experts" who repeatedly ask very basic questions about the theory and generate false-controversy which, in turn, leads less knowledgeable people to believe that major controversy exists on the issue.