Twin flames : I the chaser left my runner 1 year ago

Hello community,

I tried to keep this concise, but I really wanted to share my situation with you and see if anyone could shed some light on it.
I’m a woman (DF) who left her runner (DM) almost a year and a half ago.
I completely moved away—changed countries, and even continents, as I chose myself and my happiness, I left without saying goodbye and even telling him I was moving on and away for « good ».
1 year and a half later, we are no longer in contact and we have never talked again after a fight that was my breaking come.

This came after 3 years of a intense on-and-off relationship where we (and mostly I) just couldn’t seem to cut ties; there was always this thing pulling us back to each other.
I don’t want to give too much details but I know he’d my twin flame and all the evidence were there, I knew from the day I met him.

Today, my life and my mental health are doing so much better.
Everything is going great—my work, etc.
I’ve started dating again, and I truly decided to choose myself and walk away from this relationship. It required an enormous amount of strength, but I had genuinely reached my absolute breaking point.

Today, my question is this:

Despite all the beautiful things and positive changes in my life, I often have this longing feeling in the back of my mind of the fact that I miss him but I cannot feel his energy anymore like I used to before.
Also, he doesn’t have social media and despite the longing feeling, I would never reached out to him, it will be an insult to all the work, growth and strength it took me to even get there.

I'm aware the connection is dead, but it's just there, like I have a tiny hole in my heart.
Most days and most weeks, it's like I don't think about it, but then it comes back.
I don't know... I don't want to offend anyone, but it's like when someone passes away, you know? That person is no longer here, but they still stay with you. Is this normal?

Is it normal to still feel this way for my runner, even though I chose myself, started completely from scratch, and left everything behind just to move on? I even moved away without saying goodbye. I just restarted my whole life from zero.

How can I finally be free of this longing feeling ? He’s the only relationship who stayed like this. I was with someone for 5 years before and when I left my 1st boyfriend, I just forgot it all.

Thanks for your insight, your advices and please kindness.