Crossbow Pillagers don´t stop chasing you

Summary: 

I went nearby to an villager outpost, when the Crossbow PIllagers put a target on me and kept chasing me for more than 1000 blocks no matter how far i was from them. In the video, i used a spyglass to show how far i wass from the pillager, and it´s kept following me

Notes:

The videos below shows a bit of what i said