Bible Verses About Emotional Affair

• Matthew 5:27-28 Ye have heard that it was said by them of old time, Thou shalt not commit adultery: But I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart.
• Jeremiah 17:9 The heart is deceitful above all things, and desperately wicked: who can know it?