LPT: If someone toxic gets you very frustrated and you feel like blowing up at them, don't. Hold yourself back and quietly cut them out of your life, you may think that blowing up now will not have any consequences but you never know how they will react and who they will repeat your actions to.

It's always better to be the responsible one, even if you're very upset and there are seemingly no negatives to telling them off. Speak it over with a friend later, but just leave the present conversation.