Anyone who commits adultery lacks sense; he who does it destroys himself. At first, it seems enjoyable, and the cheater might not feel the pain they are causing their victim, but they will surely face the consequences later in life.

Proverbs 6:32.
Having to live with a cheating partner can be devastating, and it can have a long-lasting effect on the victim.

Cheating shatters trust and can lead to emotional trauma.
So if you happen to be living with a cheating partner, it is very crucial to prioritize your overall well-being; the decision to stay or leave is a personal decision you alone need to make. Seek support from trusted friends and family members or a therapist.
The damage done by cheating can take a long time to overcome, but you will surely overcome.

Most women have endured the turmoil of having to deal with a cheating partner, and the lasting impact on them is enormous.
Lots of betrayed women experience anxiety, depression, grief, changes in behaviours, fear, chronic stress, and sometimes heart issues.

The Bible is open to the case of infidelity. There are so many verses that explain why cheating should not be accepted in marriages. Deuteronomy 5:18 says You shall not commit adultery.

Hebrews 13:4 says Let marriage be held in honor among all, and let the marriage bed be undefiled, for God will judge the sexually immoral and adulterous.

So, having to deal with a cheating partner is painful and traumatizing, but the choice to stay is more destructive. The choice is yours.
Your mental health is more worthy than having to deal with a selfish partner.