Married with single friends ???

I’ve been married for 3 years , & I’ve recently started going back to school and I met a wonderful group of girls .. we get alone great . I talk to my husband about then and how much fun they are and stuff but they are all single and my husband is telling me that as a married women I should not have any single friend.. idk but that honestly rubs me the wrong way !! I’m I just being crazy ?.. our relationship has been a little rocky lately not sure if that’s why he’s saying that but I’ve never given him any reason not to trust me … it’s high key controlling to me and I don’t like that .