How can you fix a poor relationship and turn it back into a good friendship?

let the other person know everything he did wrong.

start by apologizing for the things you did wrong.

insist on an apology from the other person.

decide in your head that the problem is fixed.

Start by apologizing for the things you did wrong

Explanation:

For any relationship to work out there should be always emphaty, meaning that we have to put ourselves in the shoes of the other person and try to see their perspective, therefore, if we take the first step and apologize for our mistakes the other person would see more clearly their mistakes and apologize as well, stablishing a strong foundation for a fresh start in the relationship.

answer; exaggerate what you believe is the deception and state it, hoping that the other will jump in to "correct" the statement;