To cross swords means to fight or argue, but in this sentence she wished for a peaceful conversation instead.
Consider the staetement "How she wished for another chance to have a peaceful converstation with him, especially now that she'd learned to decode the way he talked.". Based on this statement, is "How she wished for another chance to cross swords with him, especially now that she'd learned to decode the way he talked." a true statement? Yes/no/unknown