Am I overreacting

So my ex and I been broken up 2 years now and and when we first started dating my family hated him as soon as we broke up they loved him constantly asking for him. So every year he comes to my house to visit my aunt that live in another country. I hate that because he is constantly telling me he miss me and wants to kiss me mind you he’s in a relationship. So today he came to see my aunt and I said hi and went about about my business but he felts like I was being disrespectful like no we broke up a long time ago and I feel there’s no need for him to still come around