is cheating common now?

I have a question: Is cheating common now, or has it always been common, regardless of gender? I recently watched a series where infidelity was a recurring theme, appearing in almost every second episode. I know comparing a web series to real life may not be entirely valid, but it has left me wondering about the prevalence of cheating in reality.

I know people who have cheated on their partners, whether they are teenagers or married couples. So, yes, I am somewhat scared now.