oh my god. what have i done? i have completely erased you from my phone.
You made the right choice. If you deleted him/her off your phone because they hurt you, they never text back, or to regain some sense of peace by trying to break off the need to contact them, you made the right choice. You aren't a bad person and just wait a bit and soon the initial shock, regret, and panic will subside. It might come back again later but then just try to remember why you deleted it in the first place. If this is about trying to stop being the person that texts first every time, then maybe he/she will contact you first, thus proving that maybe they do belong in your life. But be careful to not go back to the same pattern thougj, because maybe they'll just text you out of feeling like something is missing, then go right back to not putting as much effort as soon as things go back to the way they were before.
If not, ouch.