After you lose your best friend, how do you know when grieving them starts?

Grief starts immediately but it can feel a lot of different ways. There's no one path through the grief process, so whatever you're feeling, it's okay to feel that way. There's not even an exact timeline. Sometimes there's disbelief, shock, or maybe even no feelings at all. Other times people get angry or they try to ignore all the feelings and keep on going as if nothing has happened at all. Grief is all of these things, and you might feel some or all of these things over time. Talking through loss with someone can be helpful, and any or all of the feelings are okay. Most of all, take care of yourself as you heal.

While this may vary from people to people. One way that you realize grieving could start is when you start to feel a void. Then you start to miss their presence altogether and then the memorize start flooding in. When you're unable to reconcile with your best friend, you start to introspect and wonder where it went wrong. Sometimes, you'd blame yourself, sometimes you'd blame them. You'd begin looking for answers anywhere and everywhere you could find, if you're still unsure of why and how it ended. The ending of a relationship without a closure is the one that drags out the most. The suffering caused by it could last for even years, depending on how much he/she meant to you. Worst is not being able to talk it out with him/her. It's the indifference that sometimes from the other side that leads to no communication for reconciliation or closure.