I guess I just deal with people who have careers and things going on. I don't get offended if someone just falls off. It happens and they usually pop back up.
I just don't under the "if you don't do what I want in exactly the way i want in the time frame i want they i will cancel you all together" attitude. Just seems like a stressful way to date.
I am just a little more easy going with dating I guess. I don't feel you should chase people but deleting numbers and being in your feelings about it is unnecessary.