Proportional editting acting odd

I was following blender guru’s anvil intermediate tutorial and proportional editing was acting really odd.

After:

It edits some axis on vertices it should not edit. I was only scaling the edges highlighted above and it made that weird shape

Does anyone know why this is happening?

From what it looks like this is what proportional editing is supposed to do.

When you select an edge loop and scale it with proportional editing blender will also scale all the surrounding edge-loops that are inside its “influence” circle, with a falloff curve that can be set using the proportional editing drop-down.

I could be missing something, maybe you could post a “before” image, and clarify which edges are scaling unsuspectedly. From your image we can not tell what is happening.

Edit:
This is what is supposed to happen: