Aurier seems the social sort so I don't think he would be lonely. And getting Lucas in as you said would soften the blow.
He's had long enough to gel with the team. They seems to all be close and not off in little gangs, just some friendships are stronger than others. As a professional he must be used to moving and making new friends – part of the job.
Is this lazy journalism again? Or is it part of the strategy of getting him game time? His value plummets all the time he doesn't play.
Personally would like to see him gone and another player come in but that's just me.
No offence Sissoko, you work hard and keep your nose out of social media and look to try your best.