In what ever revenge you decide to take, do not devalue or lose yourself.
I have heard of revenge cheating. Whatever defense you attach to this, you lose yourself doing so. Revenge cheat does not mend a broken heart.

Revenge in your relationship and marriage is a slow death and sometimes, we build a case for wrongs.
You don't have to "do your own back".
It won't make sense until you consciously try to grow past it.