@BeckyUgbe Your mental health comes first, if you think they are way too toxic for you to handle, then you can leave if you fill like it, and since you said you want to leave and unhinged message about them, that will be a relief that you have finally said want to really wanted to say, and now you don't have to put up with their BS.
But.. I understand if you still want to stay, cause even if they have hurt you a lot, they are still some memories of them that you love.
If they don't care about you, then you can leave, take care of your mental state first, don't let them be the only thing you think about.
It all still comes up to your decision.
Goodluck