how do i delink my iphone and ipad
how do i d-link my ipad and my iphone?
iPhone 5, iOS 6.1.3
What do you mean by d-link?
If you are talking about Messages then see Settings > Messages. Either turn one device's Messages OFF or provide unique Send & Receive addresses in Settings > Messages > Send & Receive so that messages sent to on will not be also be sent to the other.