When you love someone, you hold some energy in your heart for that person.
If you part with them, that energy has to go somewhere.
You let that energy out through feelings of disappointment, sadness, anger, pride, etc.
This is the grieving process—a natural way to discharge this energy.
When you say to yourself, “Oh, come on, you shouldn’t feel like that. You should be strong. This is not the end of the world, they didn’t deserve you anyway, you’ll find a much better person…”
When you say these things, you only get in the way of letting that energy out—and that’s why you’re not feeling better.
The same applies to a personal loss, the end of a project, missing out on a new role.
Loving you, Angelos
PS: The grieving process is similar to stress recovery. Here’s another example.