Dating

Girls I have a question I’m new to relationships so I’m not quite sure if this is right and what should I do, my boyfriend wants to go out clubbing alone with 2 other girls and one male friend ( 2 for 2 like my mom says) lol

It is right if someone in a relationship go out like that ? Should I tell him I don’t want him to go? Or just keep being cool with it even tho I’m not and makes me feel uneasy