Uncomfortable I agree but not unsocial. I think she selects its relationship to other criteria ... perhaps more distinguished with an intellectual level more elaborate for example.
Some of you will write again my criteria are superficial, because they relate to appearance. No doubt but what else to make us an opinion, as appearance, attitudes, behavior, we who don't speak Russian ;) :)
It seems she didn't take her eyes away from her phone the whole time the others were laughing and having fun.
I agree she never takes her eyes off the phone. I wonder if she would jump off the building if her phone was to quit working