When i share video on FB like button is not showing, only follow is showing


recently i have notices that when i share video to a FB group only the FOLLOW button is shown on the video, there is no LIKE button, and i’m talking about the LIKE button that likes the fan page from which the video was shared and not the video, the like button for the video is there. anyone knows why is this happening? because i have a video that has 3 milion views 70k shares etc… but i get only 1000 like on my fan page, which is not normal.