Don’t give up.
As time passes you talk less and less, your good morning and night calls seem boring. But don’t give up, don’t let it get to you. Show a good example of what you want. Chances are if you let the flame die out, then it will. If you try and keep giving an effort towards that call and text, I promise they’ll notice and they will try to do the same. It’s like seesaw, When your relationship goes up and down, one of you will always pull it up back up.