Loop cut basically runs through whole mesh

[Bichevski]

Hello! Trying to model kunai as a whole piece for practice. And after connecting torus or modelling the ring at the start of the handle loop cuts started to loop around the whole object and I cant move them.

What is the “rightest” way of solving this problem? Tutorials on good topology do not make it quite clear for me.
kunai.blend (1.0 MB)

[Okidoki]

Well… that’s pretty much the definition of a loop cut… cut along the whole loop… and if you have a loop in this direction…

…or just add some details and maybe use bevel modifier for a “high poly” version for backing normals…