If someone commits adultery on their souse, and their spouse commits suicide over it, what should the punishment be for the aduleror or adulteress?

If it's proven in a court of law that someone committed adultery, what should the punishment be? It boggles my mind how ppl think adultery should fall under the list of things the government grants as freedom. It's illegal to refuse to bake a cake for gays, but legal to betray the one you love most? It's illegal to litter on the streets but not commit adultery on your one true love? It's illegal for police stations to torture serial killers to get information but legal to cheat on the one you love the most? In the ninja world, those who break the rules are scum, but those who abandon even one of their comrades is worse than scum; your spouse is your comrade number one.

Now, for all the nitpickers who will not comment on the heart of the question, I know the laws I mentioned are not universal, and some places don't make those things illegal. I also know adultery is technically illegal in some places, however, those laws are not enforced.