he remembered me after seeing me just once, and I even changed my hairstyle

It sounds like you are feeling confused and maybe even a little uncomfortable about the fact that someone remembered you after seeing you just once, even though you changed your hairstyle. It's understandable to feel this way, as it can be unsettling when someone seems to have a strong memory of us, especially when we don't feel like we've done anything particularly memorable or noteworthy. It's okay to take some time to process these emotions and figure out how you want to move forward. From a Buddhist perspective, it's important to remember that everything is impermanent, including our thoughts and emotions. This means that the discomfort you're feeling won't last forever, and that you have the power to change how you think and feel about the situation. It can also be helpful to practice mindfulness, by staying present in the moment and observing your thoughts and feelings without judgment. This can help you stay grounded and prevent you from getting caught up in negative thought patterns. From a psychological perspective, it's worth considering the reasons why this person might have remembered you. Perhaps they were struck by something about your personality or energy, or maybe they simply have a very good memory. It's also possible that they remembered you for reasons that have nothing to do with you at all – maybe they were having a particularly memorable day when they first saw you, or they associate your face with something else entirely. Regardless of the reason, it's important to remember that their memory of you doesn't define you as a person. Moving forward, it might be helpful to focus on self-care and doing things that make you feel good. This can help boost your confidence and make you feel more secure in yourself, even if someone else remembers you in a way that feels unexpected or uncomfortable. You could also try reframing the situation in a more positive light – for example, by thinking of it as a compliment that someone remembered you even after you changed your hairstyle. Ultimately, the most important thing is to be kind and gentle with yourself as you process these emotions.