He also did not try to stop her from continuing in the direction that she was heading.
Because he kept telling himself, "She needed to cry," that is exactly what she did: she cried. She cried because he kept telling himself that she needed to.
Because John felt that women who did not engage in physical battle wept a lot of tears, and because Lisa was simply a musician, he considered this behavior on Lisa's behalf as usual. In addition, John believed that women who did not engage in physical combat shed a lot of tears. John also believed that even non-combative women wept a lot of tears, despite the fact that they did not engage in physical conflict. According to John's point of view, non-combatant ladies shed a lot of tears for a variety of reasons other than the fact that they were physically fighting.