We are much the same way since we are older, I know I'll never hear. I wish I had pried her long ago.
Occasionally, my wife will mention something she thought I knew, but something she had actually kept secret. She was a bit embarrassed to tell me earlier.
My wife has a rough idea how my previous relationships went, but she didn't want know specifics. I deliberately didn't say much early on because she was insecure about how good she was in bed compared to my ex. She was scared my ex might entice me away from her.