Guy would simply stare at the sudden & painful looking exorcism before him. Stuck in a moment of shock, and confusion as he would just stare on. Not entirely sure what was going on, perhaps a bit afraid, a bit relieved but mostly just stunned. 

"what-"
He said as his brain was more or less catching up.
He hadn't processed the question fully after he heard it, took a minute to register in his brain. 

"Fu-!"
Guy stumbled with the crucifix and would immediately drop it to the ground. 
Staring in fear of the object, and had fumbled it as if he hadn't wanted to touch the thing at all.

"My room? Do...Ghosts often visit....you?"
His voice stumbled through.