As someone who was kept out of the loop, I don’t care as long as it’s within reasonable hours/ you’re not disrespectful. My old roommate would bring in random ass people at like 12-3 am and play board games or watch movies while SCREAMING. Mind you I was in school and had to try to go to bed but couldn’t. So as long as you’re respectful and thoughtful of who you bring in, it’s ok to keep her out of the loop. If someone comes over later at night, it’s probably fine but it’s respectful to tell her