I mean, it wouldn't without the rest of the package, but given the rest, it's definitely part of the appeal, yeah!

I think the most important part for both of them is how much they're the same, and share the same priorities and ideals, how well they understand each other on a fundamental level. 知己, you know. But part of the appeal has to also be that they've found this in someone who on the surface doesn't look like they'd be so similar! So all the differences between them make it even better.