I’ve dated some real Aholes in my time and have never gotten any regret or apology. And they just keep doing the same thing. Eg one guy turned up drunk to a second date with his best mate. Then asked ME to take them home. I was alone and didn’t have central locking at the time. A few months later the same guy contacted me and begged me back- only to never meet me. Then blow up MY phone with verbally abusive messages. Regretfully I deleted them and didn’t go to the police. Then I look on Facebook and this sick guy is in a relationship? What the he’ll?
The truth is that most guys you’ll date around your age are going to be “A-holes” and there’s not much you can do but to get good at identifying them before they hurt you. The more you date, the better you’ll be able to smell BS from a distance. Assume every guy you date is going to be an a-hole and this way you won’t be disappointed when it turns out to be true. On the other hand, when you do find a “good guy”, it will feel like finding a needle in a haystack. Good luck.