Lou had an exceptionally strong memory, likened to that of an elephant, which meant she could easily recall events and details from the past. This trait made her generally forgiving, as it took a significant offense to prompt her to feel resentful towards someone. However, once she did develop a grudge, it became increasingly difficult for her to move on from those feelings.
This illustrates the complexity of Lou's character, showcasing her capacity for both forgiveness and deep-seated resentment. Her struggle with holding grudges reveals a significant internal conflict, as she balances her memories and emotions with the desire to let go and find peace.