blender 2.8 - objects are scaling weirdly when i try to scale my objects on blender, they scale weirdly. the reason may have been because i applied rotation &amp; scale to it (shift+a), but i'm not sure. i've tried redoing whatever i did wrong (changing pivot point and origin), but nothing seemed to do the trick. 

before, i was able to scale the object on the video below as if it was one object (didn't scale weirdly)

i hope i was able to express myself correctly. thank you!

video of what's happening: https://imgur.com/a/ASu06Gv
You must have enabled the Only Origins option, which allows to move the objects apart from each others.