Breaking up with guy

In a relationship with a guy and from the second I met him I could tell there were problems coming from his side. Immediately he was too familiar. I had no idea how to tell him I have no idea who he is. He continued to reach out with the same familiarity and even pick fights on topics that should not be his problem. He was looking for a problem. I had no idea what to do, but I didn’t let him into my house, so it isn’t my problem. There has never been a standing “you can come over any time you want” agreement in my house, I don’t have to deal with him. As time went on I could tell his ability to look for problems, in addition to his assumed familiarity, were going to cause friction I shouldn’t have to deal with. Accidents were going to happen, and eventually did. Nobody stepped up to fix it, the blame got thrown out carelessly at those around the person who was liable who still assumed familiarity with everyone.

Eventually he shows up to my work, just expecting me to drop what I am doing and sit down to hang out. It was kind of embarrassing. I did wait on him and got him anything he could ask for. Still it was an odd feeling knowing he felt justified in the accidents he did cause, where he could have been nowhere near the situation to begin with. I think he could have figured things out in a way the situation didn’t play out how it did, but he was smiling so obviously he was having a good time.

We haven’t seen or talked to each other since and I have no reason to talk to him because I am confident he is going to continue to look for problems. This guy is not my problem. I don’t have to keep track of him. I shouldn’t have to see him anymore, and to be honest I have no intention of ever making things work between us.

Now he is reaching out looking for forgiveness based on his own past actions. I have no reason to forgive him or entertain him whatsoever. He needs to clean himself up and move on. I am not responsible for this man.

He can do whatever he wants but I don’t like him and don’t have to make time for him either when he will not be in my life.

Any ideas on what to do here? Thanks for any information.