system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does it seem like after you go through some tragic events in life you lose the capability of having feelings?

I've been numb for like 2 years after losing a loved one and other eventful things. I was always a very emotional guy but I feel like I'm physically incapable of crying if I wanted to now.
gpt
Coping mechanism.

You're a young child and you lose your favorite stuffed animal - it's the worst thing that has ever happened to you and you tell yourself that you're not going to let it happen again so you'll never feel this pain again. 

You're twelve years old and the family pet that you love and grew up with dies. You thought that the loss of a stuffed animal was the worst things could feel, but you've learned you were wrong. 

You're eighteen and a few months into college when your long-time high school girlfriend, who went to a different college, decides it's impractical to try maintaining a long distance relationship and she breaks up with you. All the love and memories you once cherished are now haunting you. You've felt this pain before but this time it's worse because of all the effort and sacrifice you put into the relationship, and now all you feel is unloved and betrayed.

You're in your mid-twenties and you learn that a good friend or family member died much too young, and now it's not just happy memories haunting you as you work through the pain of your loss, but an even deeper fear as you suddenly become all too aware of your own mortality. 

Now you're in your early thirties, looking at your newborn baby, asleep on your chest, and your wife snuggling up against you. You're surrounded by love but everything you've ever loved has ended in an increasingly deeper pain. You think about the pain facing your child when they lose their favorite stuffed animal, the future sorrow of losing the now three year old dog that's curled up at your feet, the suffering of their first breakup, the fear of losing them in a car accident, and the understanding that the ceaseless marching of time continues on without regard for you, what or who you care about, or the agony it has left in its wake. 

Everything you've ever loved ends in pain. That's when you begin to consider that perhaps the numbness is the most merciful thing you could do for yourself. Perhaps feeling empty is the more bearable alternative to the dizzying highs of love that always end in the depths of crippling pain. 

You begin to think that nothingness is best...

Because it seems like that's the only coping mechanism you have left to try...

*(Edit - a word)*