system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Of all the ways Ego could’ve killed Star-Lord’s mom, why did he choose brain cancer?

Why make her suffer as much as possible? He could’ve snapped his fingers and disintegrated her, or conjured up a gun and shot her in the head, or dropped a 100 ton boulder on her house. Any number of methods would have made it quick and painless, so why go for the long-winded route?
gpt
Because Ego is a wimp, not having the guts to just kill her off instantly. Giving her the cancer let’s him kill her, while also being able to distance himself from the act of killing her. Kind of like pulling a bandaid off, he too afraid to pull it off quick so he takes the long route of slow and painful.