Betray

Just always bear in mind, betray is for once and forever. Once you have breached the trust, do not think that you can simply expect the one that you have betrayed to just wipe off the pain and fear you have planted in his soul. 

Don't try your luck to mend something that you have damaged. Don't even think of blaming the one for not being able to forgive you. Pretty obvious that one can't trust you again after much harms that you have made. You can never expect someone to simply forgive you after you have come forth and give him a hard slap on his face. You can never ask the one to act as if there is no past. The dark past is there. Whatever it is, do think of stopping whatever you are doing at the back. The more you do, the more you cracked the damage.