Is it considered inappropriate if my boyfriend danced with another girl at prom?

Starcluster
My boyfriend graduated from university and they had a prom which I couldn't attend with him because of covid. At the prom there were different songs being played but some of them were for slow dancing and he invited his female friend to dance with him a few times, he didn't dance with any other girl, just her. Should I be jealous?
Is it considered inappropriate if my boyfriend danced with another girl at prom?
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