'Feels' in the Bible

If a man thinks he is not behaving properly toward his virgin, and if his passion is so strong that he feels he ought to marry her, let him do what he wants; he isn't sinning. Let them get married.

However, if a man stands firm in his resolve, feels no necessity, and has made up his mind to keep her a virgin, he will be acting appropriately.

Therefore let the one who thinks he stands firm [immune to temptation, being overconfident and self-righteous], take care that he does not fall [into sin and condemnation].