jerk the reins and ride on separate routes; each going one's own way; go by different roads; go separate [different] ways; part company with ...; part ways; take one's leave of each other and go one's different ways
Related Translations:
分道: [体育] lane 短语和例子第一分道 the first lane; 分道叉 turnout;分道通风 divided ventilation;分道线 lane line (路面)