Complex sentence: Although Mrs. Possible usually projects an aura of calm confidence in all situations, she occasionally shows small signs of frustration or disquiet when dealing with Jim and Tim's rambunctious behavior, showing that although she loves them, they sometimes drive her crazy.
Split into simpler sentences: Although Mrs. Possible usually projects an aura of calm confidence in all situations, she occasionally shows small signs of frustration or disquiet when dealing with Jim and Tim's rambunctious behavior. Showing that, although she loves them, they sometimes drive her crazy.