"...For He Himself has said, "I will never leave you nor forsake you." ~Hebrews 13:5b
"For I am persuaded that neither death nor life, nor angels nor principalities nor powers, nor things present nor things to come, nor height nor depth, nor any other created thing, shall be able to separate us from the love of God which is in Christ Jesus our Lord." ~ Romans 8:38-39
"...For I will forgive their iniquity, and their sin I will remember no more." ~Jeremiah 31:34b
I have never had God remind me of something I did "back when." Because when I asked Him to forgive me, He DID, never to remember it again. When I have messed up, He has never stopped loving me, because His Word says that nothing shall separate me from the love of God. When I have been in the deepest pit of depression, and felt all alone, He has reminded me that He is right there with me and if I'll only ask Him, He'll get me out of there.
I have yet to find anything that God said He would never do, that He has done. Of course, I really haven't looked. Because I know that He also never goes back on His Word.