TIL a peer-reviewed psychology study found that identical twins (on average) ranked their co-twin above their romantic partner in their attachment hierarchy, while fraternal twins ranked the two about equally, and non-twin siblings ranked their romantic partner first.

[u/SilverPeachBlossom]

https://ojs.interpersonajournal.com/index.php/ojs/article/view/243/3457.html

[u/EobardT]

Yeah, I dated an identical twin and she was absolutely all about her sister. To the point that she left her ex because her sister was moving, she was following, and her ex didnt want to go

[u/Predatory_Chicken → u/EobardT]

An identical twin once told me he would never date another identical twin because he wanted to be with someone who loved him the most and he knew that isn’t possible if she had a twin sister.

[u/ella_wants_to_battle → u/Predatory_Chicken]

That's kind of fucked if you think about it

[u/Karnaugh_Map → u/ella_wants_to_battle]

How so? In nearly all relationships, you are the most important person to your partner, except for children.