There is a book called "The Prophet" by Kahlil Gibran.One of the many wise things he has to say is his feelings about marriage. He says you should be like two trees. Neither casting shade on the other, causing one to be dwarfed. To grow strong next to each other, each receiving the warmth of the sun, and protecting each other from strong winds.
This is hard, but important for a relationship to grow. Growing together. I haven't thought about this book in a very long time. Now I'm going to have to go find it again.
Annap