Catastrophe hates being around their family, and very eagerly prefers the comfort of solitude and their poetry. Flurry's blissfully unaware of this, and Cadence, Shining Armour and Tempest try to push them out of their shell. Borealis is just happy to see his favourite cousin.
If anyone has any name suggestions for Catastrophe, feel free to comment! Their talent is writing dystopian poetry, and they've got strong links to winter (their fetlocks and base of their chest-mane always have snowflakes resting in/on them).