You can change a person who doesn't see an issue in their actions. Is kinda impossible but doesn't mean you don't treat how he treat you. Treat that person with kidness (harry styles said once).  This is my perspective, i see in that way. Don't let that person change you for anything. 

Maybe you can't change that person but doesn't mean you can be yourself, can be how you are. That happens don't scared. Just be you and show the life offers. Show your best way of see the things.