Earlier this month, Twitter user @jrsandres shared a selfie of him and his girlfriend looking all cute and couply. He captioned it with “the loml [love of my life] is truly my doppelgänger. #crazy”

Photo Credit: @juniorsandres

The resemblance definitely is pretty uncanny! It’s not just a fluke either, as he’s taken and posted several other selfies that prove just how similar their faces are.

These selfies ignited a whole event on Twitter.

Photo Credit: @jrsandres

Initially, strangers couldn’t believe the similarity.

Photo Credit: @_KevinSosa_

Photo Credit: @amadeusfletch

People also made plenty of jokes.

Photo Credit: @jessejcasas

Eventually, however, it inspired a whole thread of couples sharing their own photos of how similar they look…

Photo Credit: @HeyItzJane_

… And it was kinda insane.

Photo Credit: @dessssss___

Desiree Domenici, the girl in the photo above, told Buzzfeed News that her family teases that she’s found her “long-lost brother.” She doesn’t mind, though, and says she and her boyfriend joke that it’ll be funny when they have kids and start to “argue about who the kid looks like more, because we look similar in the first place.”

Couples who already had babies were able to take things even further.

Photo Credit: @amaniec_

It turns out there are a LOT of people who relate to looking similar to their significant other.

Photo Credit: @alicelunesz

I have to admit, my wife and I definitely have some similar features too. Are we all just closet narcissists who fall in love with people who look like us? Is there something else at play? Is it just total random weirdness, or perhaps a sign of how people start to resemble each other over time?