contentious relationship

Translations
конфликтные отношения
They have a contentious relationship, often arguing over minor issues.
У них конфликтные отношения, они часто спорят по мелочам.
Definitions
A contentious relationship refers to a relationship characterized by disagreement, conflict, or disputes between the parties involved. It often involves frequent arguments or opposing views, leading to tension and difficulty in communication.
Words
contentious

adjective
конфликтный
relationship

noun
отношения