Husbands female friend from work won’t leave him alone at work events?

I’ve been with my husband to several of his work events. He had a female coworker who he is friends with and this has caused a little friction between us. Whenever at social events for his work she always wants to sit next to him and stay with him the entire time. Am I wrong for not liking this?

Husbands female friend from work won’t leave him alone at work events?
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