I like how age is what more matters her than gender.*v*
I like the implications that even the concept of homophobia might simply not exist in this village. Xiaoen opened up so nonchalantly about her relationship with Xingyuan, like she never had to consider that outing her might be a problem, and everyone just rolls with it.
It's a small town, after all. Places like that tend to either be horrible bigot cauldrons, or surprisingly nice places where you can be as you are and you will be welcomed. Big cities go into middle of that spectrum, there people don't often even know who lives next door.
Also, their boss is bit weird, so I think everyone in the company is just happy that she found herself a lover. Xiaoen has a fairly high position in local hierarcy given her age, so she also has a lot more freedom to date anyone she likes, despite all the "I'm totally a teen chaser" whining she is throwing out.