I Think Cheating Is Wrong

Feeling sad for two of my friends at the moment, in a matter of weeks they both found out their husbands are cheating on them. They have children which is making everything more traumatic.
The internet defiantly makes it easier for those so inclined to cheat which I think is very sad. Why can't people be honest & just say "it's over" rather than cheat?
It's all very upsetting 😢