Tornquist 

/ˈtôrn·kwist/, noun, A person who prevents or otherwise derails interesting conversation using loud, inane, unnecessary and incessant banter. Polite participants to a conversation have no defense within the bounds of propriety and must simply endure.

"Tell me about your weekend before that guy gets here. He's such a Tornquist that we won't get a chance to talk."

Tornquist by VancouverHoover December 8, 2017

Thornistic relationship

Noun
A way to describe toxicity in which both parties mutually benefit while still being harmed. A double sided parasitic relationship.

Though the relationship could be considered toxic my ex and I had a thornistic relationship so it ended on good terms.

Thornistic relationship by Bigboicheese May 6, 2022