For 49 years I've have been sleeping on the right side of the bed. It didn't matter if I was single or in a relationship, the right side of the bed was my side of the bed.
After sleeping happily on the left side of the bed for 5 yrs, Brandi has decided she rather sleep on the right side. So guess who sleeps on the left side of the bed now? Me that's who. No one has ever been able to get me to give up that side of the bed. Along comes this 5lb walking furball and whatever she wants she gets.
So now not only do I have to wake up in the middle of the night to lift her back up into bed when she goes potty (she has steps....but she has me trained very well), now I have to give up my side of the bed.