Kind of annoyed that my friends boyfriend tacked himself onto me and my friend's vacation. Is this a red flag?

Would you consider it a red flag if a guy invited himself basically to a vacation me and my friend planned to Hawaii? She mentioned that she missed him and wish she could see him for a week straight and he basically said “well I can come to hawaii with you” I told her that he can come as long as they are respectful to the fact that I want an actual enjoyable vacation but I still find it a red flag that he intruded on something that was supposed to be a friend vacation
Kind of annoyed that my friends boyfriend tacked himself onto me and my friend's vacation. Is this a red flag?
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