My husband is a very traditional kind of guy. He has always worked hard for an employer, brought home a paycheck, put some away for his retirement, paid his bills and allowed himself some for fun. He's always done things the way they've always been done because - hey, that's how they're done, right? He will be grinding it out this way for the rest of his life because that's where he's comfortable. The biggest risk he takes is when our finance guy moves our mutual funds around.
Unless there is a laid-out, clear & obvious plan, he's not getting into it. No matter how much researching, learning, reading a person does, he will ALWAYS find the negative or pitfall. (He walked my first investment property for the first time today and the first two things out of his mouth were, "So it's not an open floor plan" and "The master bedroom doesn't have a walk-in closet".)
Some people will just never "get it". Some people will only get it after they see the success at the end of the journey. I hope your wife is at least the latter and can change the way she sees you after some success. Although my husband isn't the type to do this on his own, he is supportive of me doing it. It makes it easier to not have someone saying those things you listed in your OP.
I do hope you get things sorted out with your wife. The only advice I can give you is to talk as little about it as possible. Talk about the weather, the dog, the neighbor's stank kids, whatever! I've chosen to just not speak to my husband about anything regarding the property. No matter what's happening, when he asks me how it's going, my answer is always, "Fine!". Even when things are going great, I don't get into details with him. It just never ends well because he just doesn't understand the passion.
All the best!