Dante was becoming increasingly impatient within Rose's skin. He didn't think this was a particularly splendid idea. Experiencing a sensation of being enclosed and restricted to Rose's mortal form.
The struggles of being a woman were taxing and painful.
"When Rose saw Lucy undoing the knotted and tangled strings, she shrieked, Are you so incompetent as to be unable to tie the corset?"
"No, M-Milady, it's just… The s-strings are very t-twisted," Lucy stammered nervously.
"Hump! Hurry it along. I have things to do, and I cannot be held up by a maid who is incompetent." Rose snarled at the maid.
Even Lucy was curious as to what had changed in Rose's usually sweet demeanor; it was like her voice had deepened, and her face was stoic with a knitted brow and narrowed eyes as if she held an expression of extreme displeasure in her eyes.
I think Dante realizes this possession thing was a horrible idea.