If you have a number one next to you, you should take into account the fact that he will always require your attention.
You should not pay attention to other people and disregard him.
If you have children, you should not pay less attention to your partner and you must always keep an eye on him.
He will always be protective, so although you may not need his care, make sure he knows that without him you will not feel protected.
To be with him, you must join him in his hobbies and encourage him from behind. He must be the one who shines...
You must support him in his projects, but put a stop to his sometimes uncontrollable impulses.
You must understand that he is independent and that sometimes he prefers loneliness; therefore, do not overwhelm him with reproaches or try to hold him with an emotional tie as he may run away from you soon.
As he will be a protective father, you must also know that he will want to be the authority. If you want him not to subdue everybody, you should be subtle but firm in dividing certain responsibilities.
Let him shine like the sun... but do not let his light blind you.