Thoughts?

So my husband and I agreed to start a custom design business. We currently work full time and have discussed pros/cons of starting this. With any business you MUST put ALL your time, dedication & hard work to succeed, and I'M willing to do that. Hell I work 8 hard hours a day to help someone else with their business why can't I do it for myself, right?

Well, we started talking numbers how much for this & that, and so I mentioned if we make xyz amount week for xyz amount of time, I'll consider resigning. FYI the amount is double my salary. I don't see a issue with that.

His face just balled up like

Like wtf? It was my idea initially then he just agreed to join because he's a graphic designer... Am I wrong for wanting to start a business, waiting for it to succeed, then resign?