AIO if I’m thinking of asking my roommate to stop bringing their boyfriend so often ?

So, me (20F) and my roommate/sister(21F) have been roommates for 2 years and generally we don’t have a lot of problems apart of her nagging me she wants me to clean more (which I end up doing). This problem has risen in the last 6 weeks, a year ago my sister ended a 4 year relationship, but before that I was used to her ex boyfriend coming over from time to time. I like my personal space so I usually stayed in my room when he came to visit. Now, she just started a new relationship a few months ago, and she is over the moon (I couldn’t be happier for her). And since we live together, I once told her her boyfriend could stay the night since it was really late (he helped us rebuild some furniture). She said thanks and he stayed. Well, that time he ended up staying the whole weekend here, which i did mind I little, but I do like his boyfriend and I knew she was still in the honeymoon phase, so I tried to see it as a one time thing and move on. My sister and I did talk, and my sister apologized for it and told me that since they were about to get really busy and not be able to see each other as much, she really wanted to see him that weekend, so ok. Fast forward the last few weeks, and the weeks we have stayed in here (because we sometimes go visit our parents) his boyfriend stays all weekend, even on weekdays. It’s starting to bother me because I feel like I don’t have my personal space, but I don’t know if I’m over reacting since I tend to be a brat sometimes… Is it normal to need to see your boyfriend this much? Do I just need to suck it up? Or can I talk with her and see if he can stay over less times without seeming like a Karen or like I’m not supporting their relationship. Any advice will be helpful, thanks!