companionate
/kəmˈpænjənɪt/adjective
1- formal (of a marriage or relationship) between partners or spouses as equal companions〈正式〉（婚姻, 关系）相配的; 平等的, 同伴似的。
1.1
- (of a person) acting as a companion（人）同伴（似）的; 友爱的。