6. That you’ve been bad-mouthing him to your girlfriends.
Your boyfriend can get incredibly turned off by finding out about this side of you. Guys tend to be shocked at how outspoken their girlfriends can get during “girl talk,” but you could also argue that they’re just putting women on too high of a pedestal. If you’re well-behaved around your boyfriend but wild with your friends, make sure not to slip into friend-mode in situations that bring your boyfriend and girlfriends together.