What is the consequence of marrying someone evil?

Consequence from others specifically, see I had the scenario of someone (legally) innocent marrying let’s say, a war criminal. Now for the sake of narrowing the answers let’s say this evil person won’t harm their spouse, and loves them very much..

What would happen to the spouse if they are say, captured? Like, they didn’t technically do any evil themselves, that was all on their evil partner, but I see often people assuming(?) they would be evil too, and thus deserving of punishment. Or wishing harm on them..

I ask as I honestly don’t know what to feel about this