email associated with two different Apple IDs keeps me from logging in

It seems I have two different apple id accounts both associated with the same recovery email address. As I enter to “Manage My Apple ID” it tells me I need to verify my email address.

Specifically, it says “A verification email was previously sent to XXXXX@XXXXX.com. We can resend the verification email to the same address, or if this address is incorrect you can change your Apple ID and email address.”

I hit the “Send Verification Email” button, but it tells me

“Email address is already verified for another Apple ID.” and I’m stuck, because I’m not sure what that other Apple ID that is associated with that email address is. Can anyone help me out?