Some say that people do not or can not change. I do not believe this to be true. People are always growing, learning, and experiencing new things. Which concludes that people are changing every day. The person you went to bed with is a different person when you wake up.
Some do not accept change. Often times relationships come to an end because one does not accept the change in the other. We are to adapt to change. Embrace change. When you love someone, you love who they are and who they grow into.