My chocolate rabbit snails are never far from each other.
This is why I will always tell people looking to get rabbit snails to get 2. From my experience these snails do seem to be social. Chocolate rabbit snails especially, when I only had one orange rabbit snail and one chocolate they were together all time and the chocolate one always followed the orange one around often rubbing faces with each other.
Soon I got another chocolate and these two have friends since while the orange one just ended up hiding and not eating after the chocolate abandoned him for the other chocolate, he got over it after a few weeks and I eventually added more orange rabbit snails.