I have also looked in drawers and found things like condoms and sex lube that we have never used, and I found these a bit distressing. I also come across photos from her past relationship (not necessarily as a result of snooping) or hear her mention in passing "I went to that place with my ex once" and my thoughts go into a downward spiral obsessing over her time with him and with other men. She knows this is difficult for me and she always reassures me "He's in the past for a reason. You offer me so much more than he ever did. I love you and not him." And I believe her, but it does not change my thoughts.