Let me preface this by stating i've been with a lot of women, with the minority being one-nighters.
On average about 6 months commitment a piece.

Only a couple standouts exist in a 3 year and 4 year long.

Both of them pop into my head at least once or twice a week without fail.
Sometimes i can swat away the feels, sometimes i cant.

It's like a weekly appointment to be smacked by the feel hammer. And Being in new relationships does not solve this

Have any miscers figured out a way to put such a thing to rest? Memories are what make us who we are, but constant feelbashing is worriesome nonetheless.

I'd rather just be able to reflect on those things at my choosing, without the feels. But it seems they just pop into my head whenever they feel like it

It's normal and it won't ever go away.

I've had 5 serious girlfriends and they all pop up at some point or another.

The best thing to do is to acknowledge that sh*t. If you fight against it then it will become a prevailing thought until you address it.

You had a journey, she was there, you're shapes In a way in small thanks to her. Good, because you're a good guy. Be cool with it, leave it on the side of the path until it catches up again one day and do it again.