Would It Be Uncalled For Me To Want My Own Bedroom?

So things are still progressing decently with my current relationship, at least better than I thought it would, and I'm looking into getting my own place in a few years, preferably a 3 bedroom home, and was considering asking my boyfriend to move in when I did so to help with utilities as well as to just help keep me company. We both live with relatives at the moment and I think it would be nice to have a place together, but if we did, I'd want to keep one of the bedrooms as my own place free of outside influence. I'd still sleep in whatever bedroom we end up sharing, but I’d still like my own room to decorate and settle into with my loftbed and computer/gaming consoles because it helps me destress from having to work and be around other people constantly. Because of the way I am, I know if I didn't have a place to retreat too and recharge, I'd get too agitated and anxious eventually so I'm trying to think ahead of all this, but am afraid it will come off as me butting up a brick wall or something. Am I being paranoid or selfish or something?