Been there, done it. Though every couple is different. I was married before to someone years ago, where they weren't just not interested, but spiteful too, and sarcastic. Needless to say, she was out. Divourced.
I'm that type of person. If someone loves you, and you haven't egged them on about the biz, then no need for that person to act that way. It is far more to do with something else e.g. lack of self respect, lack of maturity because I'd always make this person important in my life but no matter what you do - if that person has values is not similar to yours, forget it.
Now, I'm married again, and before success, there was a lot of challenges. However there is a BIG difference.
This time, my wife encouraged, supported, she didn't care if it was MLM or washing dishes. She told anyone else to mind their damn business from our family affairs and if they are not willing to encourage, shut up. And no one talks bad about her man.
See the difference?
She took me for the whole package and so did I.
So, even though a spouse is not interested, it doesn't matter. Love, family comes first. A mutual respect and if there isn't any of it, it's dead. It can be developed but it takes two.
One thing to do, is lead by example which I have done always but if this is causing some challenges of sarcasm, of trying it on with acting stupid all time, making one look stupid in front of friends - she's out. End of the story.
But that's me, that's my values and it's my personal view in life.