As I understand it, the Myanmar/Yangon names were the traditional names before British colonialism, which in British parlance became Burma/Rangoon. So you would think that the decision to change the name back would have been a no brainer within the country, right?
Well, actually no. Aside from human beings just not liking change, (and, again, this is as I understand it from being educated by locals in-country), the name change was the brainchild of the military government and was seen as a rather transparent bullshirt attempt to "unify" the country at the same time they were fighting off/jailing Aung San Suu Kyi and her democratic followers.
So the locals I was familiar with when I was spending a lot of time there (roughly 1993-1997) still used "Burma" and "Rangoon" as a kind of F-you to the government. Not that they were happy with the British colonialism legacy, but rather it was the real-time oppression of the military junta that they were immediately concerned with, not the "university student" optics of a name change.
And, yes, Burmese women are by-and-large gorgeous, and their personalities and friendliness are even more attractive than their physical beauty. If I didn't love my wife as much as I do....