In my opinion you punished yourself enough. I do not know what your beliefs are. I personally do not believe in punishment through karma, or by a higher power. Someone else may be able to chime in regarding that. Glad you did research the stages! If you keep telling yourself you will not get to acceptance...then maybe you won't...I can tell you there are more than you can count that did/do get there - cheating people recover as well. You learned a very hard lesson - and you are not done learning. You are now better equipped to deal with this type of situation again. You gave yourself innocently to a bad situation...and I'm pretty sure that will never happen again.