codependency
noun [ U ] uk/ˌkəʊ.dɪˈpen.dən.si/ us/ˌkoʊ.dɪˈpen.dəns.i/
关系成瘾症；共同依赖症（由于过于深厚的感情关系，纵容患有嗜酒，精神病等的家庭成员）
the situation when someone has too strong an emotional need to help someone else in their family who has an alcohol problem, mental illness, etc.