Thing is, we can not “unknow” something. Once it is out there, it forever will tint our experiences.
Friend of mine has a spouse who admitted a long time sin (nothing sexual). They have confessed the sin, they have amended their life and they went against the advice of their confessor and told it to my friend. This friend wishes to God that the sin was never revealed, because now, in spite of prayers and love and mentally forgiving her spouse, she cannot unknow it.
When she remembers times in the past, she now views them through the lens of this sin and nice memories are now tainted. Every time he is 15 minutes late or does not take the call or does not respond to a text, she begins to have a toxic blend of suspicion and worry. Years later, she can go from normal day to overwhelming suspicion and accusations with little or no trigger.
It is well and good to say you want to know, but, with that knowledge comes a huge burden.