Being a good partner is something you have to work at. Nobody is instinctively good at considering other’s feelings all the time, everyone comes with their own baggage, we all have learned bad habits. Emotional maturity comes to those who consciously practise it. Each time you interact with someone you have the choice to act on instinct or by considering the best course of action.
I have no doubt that if you are reading this, you are a good person, with the potential to be an even better one. Always strive to be even better than you are now.