I can’t get over a bad experience

My boss lost his cold blood last time I saw him and he treated me in a mean way, he realised that at the end and he told me that doesn’t want to put pressure on me and he knows it’s not my mistake (it wasn’t my mistake) but I don’t like when people doubt me, I get irritated, I hate them and I become distant.
I am afraid I am going to change for good now, he broke me… we were in a stressful period, but talking to le like if I was stupid? Not gonna just swallow it.