iMore

My wife has an iPad and iPhone, and an iCloud account. She set her contacts, bookmarks, to synch, and enabled photoshare. Now I see that the Address Book on our Mac has become hers (wiped my contacts off). Is that because she signed into her iCloud account on the Mac? I don't want her stuff to synch with the Mac (she doesn't use it), just between the 2 devices she has. She does want her pix to go from iPhone to iPad. How do I make sure none of her stuff shows up on the Mac? Thanks.