drive a wedge between sb

drive a wedge between someone ( do something which spoils the relationship between two people or groups; cause a division between them) — досл. вбить клин между; поссорить; расстроить, испортить чьи-л. отношения; пробить брешь в отношениях; настроить друг против друга

Example 1: She thinks Samantha's jealous and is trying to drive a wedge between her and her boyfriend. (CIDI)

Example 2: Frank had to travel a lot and this finally drove a wedge between him and his wife. (CIDI)

Example 2: Delia's rejection of the family had driven a wedge between him and his daughter... Nor had the latest crisis served to revive any bond between them; to Danton's knowledge the rest of the family had failed to even attempt contact with Delia, despite having been told what had happened. (Kyle Kirkland, CAGED)

в определенных контекстах может быть переведно как "кошка пробежала между"

cf.
[play one off against another]