Trauma came back

I was in my room.
Im having a trauma for a minute ago. I supposed to forget about that. But it still play on my mind.
Just now Tim ask me a questions about how do i broke up with my ex.
Im shaken to tell him the story. I know it will remember me about what happend between me and my ex a few months ago.
Im taking a deep breathe and tell him the whole story.
I tried to closed my eyes after that. Those flasback tries to hunting me again.
I was crying. Im scared.
And even can't breathe.
I wish i could forget about it.
But, everywhere i go. . . . It always hunting me. I couldn't run away from it.
To me,this is the biggest TRAUMA in my life that always stick with me forever. :(