I was very upset with MLP writers making Chrysalis not care for her hive, so here's my little rewrite of her back story to explain her refusal to cooperate + a drawing
In the past changelings lived together with the crystal ponies*, doing labour in exchange for their love (which was painful for ponies, but their crystal forms were too fragile for physical jobs, so they agreed). But after Sombra became the ruler, he banished all changelings. They were left to rot, nobody accepted them, and thus the Great Starvation began.
* not neccesserily crystal ponies and Sombra, but it adds more tension and reason for attacking Cadence and Shining Armour. In this rewrite, when "Grogar" releases the 4 villains, Chrysalis and Sombra refuse to cooperate at all.
Chrysalis was born during that time, and not long after that her mother - the previous queen - died. Chrysalis became the new queen extremely early, she had to learn and adapt: everyone both had high expectations of her and thought she was too young to rule.
Seeing how the Great Starvation was wiping her people out, Queen Chrysalis went to the Crystal Empire to ask King Sombra to let the changelings return and live in symbiosis with the crystal ponies once again. The changelings were mostly against this, but followed their queen's orders. Unfortunatelly, it was a trap. King Sombra wanted to wipe out the entirety of the changeling race, seeing them as a threat. The hive lost a lot, 2/3 of the entire changeling population died to protect the Queen. After that Chrysalis stood in front of the remaining changelings and made a promise that the hive will no longer even think about cooperation with anypony else, that they will always be her priority and she will always do everything to keep them well-fed. And she kept that promise.
After that Chrysalis realised no pony was going to give them a hoove, and she changed the course of action. She came up a plan to ambush a lonely pony village. It was a success, and the changelings began to regain their lost hope. Ambush after ambush - the hive never stayed in one place for too long, always nomadizing. The changelings grew stronger and stronger, finally not hungry anymore.
Until the changelings found a new way to feed - to give love. Born in starvation and raised to believe the ponies will always betray, Chrysalis refused to change, sticking to her old ways of surviving. In the new hive, there were only a couple changelings old enough to witness the Great Starvation. They still love and respect Chrysalis, despite living with the hive, too old to leave it.
In this rewrite, Chrysalis isn't as old as in the comic books / show, but she still ages slower than her subjects, hence only a bunch of elderly changelings first hoove witnessed the Great Starvation and the wipe out after the cooperation attempt failed. The rest don't understand why Chrysalis refuses to work with the ponies.
Meanwhile, Chrysalis is torn between forgetting about the hive alltogether and preparing a shelter for when they inevitably get betrayed by the ponies. But in the end, she saw her subjects take the side of the very same species that had already almost caused their extinction, and she's petty like that.
