well,
depends on what context.
logically? not medicinal HHAHA
but if it’s emotionally, in my experience in my life, it’s because sometimes people just aren’t ready to heal. nothing you can do will change that. trust me.
and if it’s both: i don’t know. this world is quite cruel- and it’s a shame we can’t do more for the ones we love. i wish i had a better answer.