My wife always likes to say, “When someone tells you who they are, believe them.” The takeaway being that when someone admits to you that they’re awful, you should take their word for it. Sometimes people will pop off with some random fact that describes how terrible they are, and then they’ll try to backpedal it or take it back to some extent. You really should just take it at face value, and if you can live with that then fine. If you can’t, perhaps it’s time to reconsider.