What the true proverb says has happened to them: "The dog returns to the its own vomit, and the sow, after washing herself, returns to wallow in the mire" (2 Peter 2:22)
So many people come to konw the Truth, but don't stay passionate about pursuing it. Rather,
when the "novelty" of it all has worn down, and the requirement of discipline and self-control has gone into full-throttle, they return to what is familiar - even through it's the same familiar place of bondage.
If you don't continue to pursue God with all our heart, soul, mind, and strength, then you will not find Him and all that He has to bless and equip us with. It's not that He's lost, but rather you're lost outside of His will and plan for you. There are times it seems easier just to go back, because the self-control seems almost unbearable at times. But, He gives strength to the weary and hope to those who have lost it.
God can give you the strength TODAY, to continue to live in the victory that He has destined you for. You can do it...YES...even YOU. God loves you. It's true.