Complex sentence: Both are sent to headmaster Brother Thadeus'(Donald Sutherland) office, and during a moment alone, Rooney, impressed by Dunn's refusal to snitch on him, attempts to patch things up between them, but Dunn wants nothing to do with him.
Split into simpler sentences: Both are sent to headmaster Brother Thadeus'(Donald Sutherland) office. During a moment alone, Rooney, impressed by Dunn's refusal to snitch on him, attempts to patch things up between them, but Dunn wants nothing to do with him.