So I met my boyfriend while living at my sister's.Generally both of them did not have a good relationship but they would get along.We would often argue with my sister over me staying out late and hanging out with him or his friends and I would feel like she is getting to much into my space while trying to protect me.I moved to another state a couple of months ago and I plan to go over for one week to visit. I obviously want to visit my sister and spend some time with her but I will still want to spend time with my boyfriend .Probably spend the nights at his place.I just don't know how to go about it.I do not want her to feel like I prefer spending time with him more than I do with her I mean she is family but still I do not want her controlling me. advise me

Thankyou in advance guys