just with you 与 just for 区别是什么?

just with you 只是你,只会与你
Don't expect that he can help you pull out,he is just with you in ease not in adversity.
你别指望他会帮你度过难关,他只会同你共安乐却难同你共患难.
just for you 只为你
Saving all my kisses just for you.
我将我所有的吻都保留给你.