Originally Posted by
Sherry_B Welcome to iMore!
I'm not sure what the answer would be, but you're not supposed to share an Apple ID. Each person is supposed to have their own Apple ID, and for sharing you use Family Sharing.
This. Do Family Sharing. But it sounds like you're sharing iCloud which is worse. Go sign out of iCloud on all but one device. When asked, select "Keep on iPhone". Create your own iCloud for each other phone, then sign in and merge. Then when you delete, it only deletes from yours.
The worst way to "fix" this and keep the terrible idea of sharing an AppleID, is to sign out of Facetime, or in the options, turn off call forwarding to the other iPhone. Call logs shouldn't sync then.