Append Query Duplicating to Orginal Table

Hello,

I have searched google (as well as this site) for a good hour trying to find out what I am doing wrong here. Here is the set-up

I have a table tbl_Activities which has data about marriage activities a couple must go through. Then I have a table tbl_Default_Activities with a standard set of activities a couple may have to go through (32 in all)

I have a form frm_Activities that displays all current events for a couple. on this form I have a button that run an append query which pulls all fields from tbl_Default_Activites and pulls the couple_ID number from the form that is open and appends it to tbl_Activities. This seems to work flawlessly, yet it also writes the same information (including the couple_ID) back to tbl_Default_Activities as well.

I thought about hard coding all of the defaults into VBA but I figured if they ever wanted to modify the list that would be to much effort.

Any ideas would be quite welcome. I double checked all of the record sources to make sure its not pointing back at tbl_Default_Activities. I even delete the records from one table and it deletes them in the other... I am really not sure what's going on.