I agree with some of what you stated and put forth here. I agree it sometimes takes two to tango. And I agree that people still may get something out of the unhealthy relationship and therefore have difficulty leaving.

I disagree with the use or replacement of toxic with dysfunctional. There are defined toxic personality types, defined and characterized by many different psychologists. So there is such a thing as a toxic person and subsequently a toxic relationship. There’s numerous articles all over the web defining toxic relationships, just as there are that define toxic personalities.

A non toxic person can become involved with a toxic personality who infects their relationship with their poison. And yes, as a result, the relationship is dysfunctional. The only blame that can be placed on the non toxic person is staying in a toxic/unhealthy relationship dynamic.

So there is such a thing as a toxic person and a toxic relationship. Look it up online. Toxic personality, characteristics, toxic people and toxic relationships. There’s tons of material available online on this topic.

Toxic is defined as someone who effects our mental health negatively, simply put.