Is it wrong that I don’t want my ex to speak to my family?

So me and my ex cut things off about a year ago and he got in a new relationship. He still stays in contact with my mom which I really don’t like. by the way I live with my grandparents and care for them. So my mom called me one day and asked if I felt comfortable with my ex coming by to see my grandparents to just check on them and say hey… but I said no because it’s been a while like why do u want to see them all of a sudden? Plus you know I live with them and care for them…And again he’s in a relationship so how is his girlfriend gonna feel about that? Am I wrong for feeling that way?
Is it wrong that I don’t want my ex to speak to my family?
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