Was I wrong?

Quarmekia

So my husband tells me that my brother’s baby mama wrote him on social media just asking questions and talking about my brother..first thing I said was don’t write her again and he asked why and laughed 🧐 it’s just social media and she was asking for advice about your brother😑 so I got mad..now as my husband I expect for him to respect my wishes even if he doesn’t agree with them especially in this case..this girl and myself have talked before but we’re not friends and if we were friends she still can’t write my husband talking to him..I’ve talked to him because he’s my husband but if it happens again then I will be talking to her..did I overreact or was I justified in telling him to don’t do it again?