Eccedentesiast (n.) -
someone who hides pain behind a smile.

Ramé (n.) -
something that's both chaotic and joyful at the same time.

Alexithymia (n.) -
the inability to describe emotions in a verbal manner.

Mizpah (n.) -
the deep emotional bond between people, especially those separated by distance or death.

Thantophobia (n.) -
the fear of losing someone you love.

Athanzagoraphobia (n.) -
the fear of forgetting, being forgotten or ignored, or replaced.

Metanoia (n.) -
the journey of changing one's mind, heart, self or way of life.