Anger is such a negative and often scary emotion, whether it’s out or in. I hate seeing other people angry and I hate it in myself. I agree with posters who are saying you need to release these negative feeling.
Whether releasing them to your husband is the best idea is a completely different question. If he’s tried to put past misdemeanours to bed, thinks he’s been forgiven and generally doesn’t like shows of anger, what will your revelations do to him?
Will he counter attack with his own seething resentments over your past behaviour? Or will he be shocked that you are still angry? There are two individuals involved here, possibly both have things to regret?
Lots of things to consider here. Will it make the relationship better or worse? Will it take the shine of the future? Has he changed for the better? Do you have a prospect of a happy retirement together? What cans of worms are you likely to disturb?
If what you really want is for the past to never have happened, and can’t really forgive or forget, then maybe the retirement is the time to end things?
If however you really want to continue, I think the suggestions about trying to release the resentment alone or with a counsellor on your own are most sensible. If neither of these solves the issue, both of you discussing the past in a supportive environment may be the way forward.