More time Facebook keeps users on the site, the more data it can collect on each of us. This data is what brings advertisers to the platform, and ultimately what puts dollars in Facebook. In order to increase our chances of interacting with ads and growing advertiser demand that keeps Facebook earning revenue; platform has a very neat system that segments us by our likes and dislikes.
You can check your ad profile here. And learn what influences the ads you see and take control over your ad experience. You can delete ad groups you don’t belong in. If you delete all of them system will display ads more random and irrelevant. 🙂