On "infidelity in Marriage"

Few days back, I was talking to a friend about infidelity in marriages. Lot of dirt get throw on each other when marriages break down due to infidelity - but - I think once relationship breaks down - it does not matter which spouse cheated or does not cheated. These all are secondary fallouts and nothing but misplaced anger from actual core of (from whatever reason) long gone and dead bonding.

huwa jab Gham se yuN behis to Gham kya sar ke katne ka 
Na hota gar judaa tan se,  to zaanoN par dhaRaa hotaa