Is it okay for me to hangout with a guy who’s my friend, without telling my boyfriend?

One of my friends is going through a tough time right now, he’s been losing a lot of his friends and i feel really bad. He asked me if he could come pick me up and we’d go for a drive for only less than an hour just to talk because he needs someone there for him. My boyfriend is at work and I forgot to tell him, he’s also super controlling when it comes to me even talking to my guy friends. But I just need to be there for a friend, i’m wondering if it’s okay for me to go without telling him?
Is it okay for me to hangout with a guy who’s my friend, without telling my boyfriend?
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