The price of unfaithfulness is so high that it is unreasonable. Therefore one is wise to avoid tempting himself or herself by continuing to admire the "merchandise." Most marital infidelity occurs because the parties involved continue to spend time together. Here Solomon advised avoiding the company of a temptress (cf. Genesis 39:10; 2 Timothy 2:22; Matthew 5:28-29). [source][source][source]
The price of unfaithfulness is not just physical disease ( Proverbs 5:11 b)-though that may be part of it in many cases-but total personal ruin. Infidelity dissipates all of one"s powers ( Proverbs 5:9 a). Others will exploit him ( Proverbs 5:9-10), he will hate himself ( Proverbs 5:11-13), and he will quite possibly suffer ruin in his community ( Proverbs 5:14). Proverbs 5:9 b would fit a situation involving blackmail, a not uncommon accompaniment to marital unfaithfulness. [source][source][source]
"Although sexual immorality today may not lead to slavery, it still leads to alimony, child support, broken homes, hurt, jealousy, lonely people, and venereal disease." [1][source]
"The use of both "flesh" and "body" [2] underscores the fact that the whole body is exhausted." [3][source]