Nobody is perfect. It could have been unintentional, but you were the target of their low moment and got wronged in the process. You are feeling the range of lousy emotions: anger, sadness, shame, anxiety, embarrassment, regret, and might even start to slip into a depression. When someone suggests you forgive the instigator, you can't help but reply: "Why should I forgive him/her/them?" "He/She/They don't deserve my forgiveness" "I'll never be able to forgive him/her/them for that" "Why should he/she/they get away with that?"
People-pleasing is not a personality trait. It is part of the trauma response known as fawning. Although it can be a useful mechanism at times, existing in a state of fawning leads to exhaustion and losing touch with oneself: who you are, what you want, and what you need. To heal, it is necessary to learn how to focus less on what other people think for the sake of rediscovering who you are.