2. Follow Christ
Seek after God's heart every day, this will give your spouse assurance.

Following Christ is more than telling God what you want and asking Him to accommodate. To follow Christ is to seek Him, know Him and be obedient to everything He says.

Your spouse wants to see that your relationship with Him exists. Don't begin getting up early and waking your spouse to let them know of what you are doing. Allow Christ to consume you to the point where it is obvious.

Take your plans, visions and aspirations to God. Ask Him for clarity, ask Him to confirm to you that this too is His plan, ask Him to give you guidance.
This is more important than you may think. See, God holds the whole universe, nothing happens without Him knowing or being a part of it. If you shoot off into some new plan you have created and God is not in it, nor does He approve. This could mean devastation for you. This could also mean devastation for your relationship with your spouse.

On the other hand, if you seek God's heart on your plan, and He blesses it. Go for it!

In summation: Your spouse wants to see your intimate relationship with Christ, they want to know that you are having faith in Him not just in you. They want to know there is more behind this than just some idea you had.
If you're not following Christ yet, today is the best day to start. If you don't know how, shoot me a message I'd love to help you.

Support from your spouse is hinged on your obedience to Christ.