This pony is Midnight Ruby, a Lost Lands
Pony. These are ponies who left the lands
controlled by Canterlot and the Crystal Empire
due to some event in their past they could not
resolve. Some are outcasts, some were just
unable to find the help they needed, and many
were simply born in the community and have
known no other life.

This community of Lost Lands Ponies are
in thrall to Queen Chrysalis and the hive. As
ponies, they naturally do their best to love and
trust each other, but the Queen feeds on this
love almost the moment they feel it. So they are
always unhappy, distant, and unmotivated. To
make matters worse, Queen Chrysalis seems to
be kind to them, supporting the community with
supplies and offering her protection, so they
don’t believe she is the source of their troubles.

If you think "I can fix her" you're actually correct since she can become your ally