Its awful to see people who stop communicating from their exes. I mean what the fuck.
She/he is the same person you can't live without talking a day. And now you don't even care about them. Did you even loved them? Or it was just a tag of relationship you wanted.
Don't stop talking to people after breakup. Keep talking, keep friendship. Keep Contact. At least when you guys will move forward, you will have some beautiful. Memories to share rather than looking at the torn end you choose to.