Wes,

I think addiction is a very good analogy. You even get nervous when others say they have gone two hours or two weeks without contact from the SO.

And yes, it is driven by her and you react. Mostly positive. But I do agree you tend to get your expectations WAY TOO HIGH and then are let down with a resounding thud when it does not go the way you imagine.

And yes, in most instances, a relationship of this nature would be likely to progress into an more intimate state. But I'll be honest and have nothing to base this on, but I do not think she is going to let this happen.

It is not like she is consciously trying to control the situation or keep you close, but it is working out this way and neither one is doing anything to change the situation. So she can have the current R with you, as I have pointed out before, when she wants without the daily pressures of a more intimate R.

Does she care for you? Clearly. And you have made your feelings clear. But what does this do to change, alter, advance the dynamic?