Welcome, I am Cory.
I understand what you are talking about.
Do you pay monthly for AOL?
You need to sign in with the master screen name, the one you create the account with at this link. - https://bill.aol.com/SPortal/jsp/ScreenNameMain
Once you do that, you will be able to add another account for your friend to use.
If you have any questions, please reply and let me know.
Please let me know if you need further help with this.
If this question is complete, please do not forget to rate above to close it out.