My ex moved on so fast. How can I overcome the pain?

This happened long or shortly before they physically left.

What they do doesn't matter and it's completely irrelevant to your healing process, though it’s valid to hate and judge them harshly for leaving the way they did.

Instead, focus on taking care of, solving and healing what you are experiencing right now.

Is it possible that my TF caused a kundalini awakening in another person? He is famous because He is a singer. We have not met physically yet, but I have gone through kundalini awakening and DNOTS and their ongoing. I have also had soul recognition so I know for sure that He is my Divine Counterpart and I do not have any doubts about it. But it is indeed perplexing that somebody had an awakening at the physical level because of Him. Is it a test for me? I have a mixture of feelings. On one hand I marvelled at Him and empathised with the person and on the other, I doubt if this just a test for me. I would appreciate your pov. Thank you for much.

This is why comparing yourself to them in terms of the healing process isn't going to help you in any way, shape or form.

I.e. you thought that you had the perfect deal whereas they had already made up their mind and just weren't as emotionally invested in it as you were.

This is why you can't expect them to feel anything close to what you're feeling right now, because you and them are on a completely different stage in the healing process.

I was awaken between 2-3am by a voice that said “Hey”. Literally right next to my ear. Sounded like a males voice, but it wasn’t stern or deep. What could this mean?

Simply put, because they have been prepared and you weren't.

You both are on polar opposites of the scale.

On their side, there has been a process of emotionally and mentally checking out while you were still together and while you were under the impression that everything is cool.

NASA's Voyager Spacecraft Found A 30,000-50,000 Kelvin "Wall" At The Edge Of Our Solar System - IFLScience

So, don't try to compete with them.

And during this process, they either started seeing someone new who they planned to secure as their rebound option or were busy creating their post-breakup plan.