He had locked her out of his mind and out of his life. She could no longer get through to him, to make him feel the way she used to. He just wanted to forget about her and the way she played on his feelings - the same way she used to play on the guitar, he thought, remembering for a minute. He knew now just how badly she had played the guitar.
The protagonist reflects on a painful separation from someone significant, expressing a sense of emotional detachment. He realizes that he has shut her out completely, both mentally and emotionally. Their past connection feels unreachable, and he acknowledges his desire to erase the memories of how she once affected him deeply.
Amidst the recollection, he draws a parallel between her emotional manipulations and her lack of skill in playing the guitar, suggesting that she had also failed to understand him. This insight reveals his growing awareness of their relationship's flaws and his determination to move on from the past.
