IPhone :: How To Only Share Music Between Two 4S But Not Download Apps

I am trying to sync mine & my partners phones so that we can share itunes between both phones, I have set up 1 itunes account (using my apple id) & we each have a icloud account, I have managed to get the music to appear on both phones but it also brought all of my apps onto my partners phone, I think this must be because the itune account is in my apple id, is there a way to share music only? Also to play all the music that is on itunes library on the computer, on my partners phone, you have to change his shared music library setting every time you wish to see all that is on the itunes account, is this correct?

Info:
iPhone 4S