Parting is one of the saddest things that can happen to people. The longing, good memories making you gloomy, and knowing there's a person you can't talk to anymore. It's hard to let go, especially when on your side there's still a part of the string left, while on the other. they totally let go of the string that bound you together. When a person stops sending you messages, ignores your calls, and pretends you don't exist, try to loosen the tie. It's okay not to let go in one go and just do it one step at a time. The process is painful, but soon you'll get better.
*Minor edits have been made