Who Wins this thought battle?

I tend to see the positive in things and understand that struggles are just that…struggles. My husband tends to see the negative and everything demonstrates impending doom. For example, if things get tough in our marriage it must mean we should get a divorce. That’s him, of course. I believe we are ok…and this is normal marriage stuff.
When you have 2 people with differing thoughts that create results…which result wins???? Yes, we’re still married, but he sees divorce in our future and I don’t.