What do I do about a jealous husband?

Me and husband don’t text the opposite sex unless it’s necessary. And that’s just because I don’t feel like men and women that are friends need to text. Which is fine because he feels the same. But a I had to text a man from work to cover a shift (I don’t know him got contact from a friend). I thought I told my husband but apparently didn’t and he was very upset when he found out. He said “I didn’t think you would go that far and text a man.” As if I cheated? When it was nothing but professional text messages asking to cover certain days at work. And now he’s very angry with me anytime I try and talk to me he asks me to get away. What do I do? I don’t feel like I did anything wrong but he’s still making me feel guilty.
What do I do about a jealous husband?
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