AutoCad 2D :: Attaching Dimensions To Object In Paperspace?

i have a little drawing in modelspace. in paperspace, i have a viewport. let's say it's set at 1/4" = 1'-0". everything looks okay so far.

i click on the 'annotate' tab, and then select 'annotative' for my dimension style. it has the little triangle icon thingy so it should be annotative.

i make a couple of simple linear dimensions on my drawing (still in paperspace). looks okay so far.

but now lets say i want to change the scale of my drawing. i change it from 1/4" to 1/2" = 1'-0". my drawing gets bigger, but the dimensions stay the same size and position. they're no longer attached to anything on my drawing.

then i change the scale again, let's say back to 1/4" scale. my drawing shrinks, but as soon as it's back to it's original size, the dimensions now suddenly get twice as big and are where they should have been at 1/2".

and it continues like that, when i change my scale, the dimensions change to whatever the last scale was at, so that they're never synced up.