Would this be wrong of me?

My boyfriend and I have been together for six years and he has designated a few drawers on my side of the bed for me in his room because I am over so much. He decorated my drawer for me with my name on it, stickers etc. Well I was at target today and I found a really cute chalk board and I was thinking about writing an inspirational message or lyrics and changing it every time I come over to brighten up his room a little bit. I also bought this little paper clip with string decoration to hang up/display some mini cards he bought me over the years. I was going to keep all of this on my side of the bed. Do you think it would be wrong for me to ask him if I can decorate a small portion of his room?