Why infidelity is a thing now?

I often hear married couple say, a man is a man and will always be a man. Referring to husbands who “eventually cheats” and it’s normal. When did cheating become normal? In the wild, animals jump from one partner to the next. It’s animal instinct. But why do we consider ourselves human if we want

Exhaustion

For how long shall I love your tantrums? How far shall I accept your immaturity? Is there a way to get rid of such childish ways? Is there a way for you to grow?   I promised to love you and I promised to care for you But didn’t you also promise the same? Is