Did my bathroom really need to be demolished?

[Nat C.]

I have an unusual situation. I have a unit which needs remodeling however the bathroom was the only part which had be redone and was in good shape. The tiles were a beige and I wanted a black theme. I paid a tiler to put new black floor tiles down and was planning to have him put up new wall tiles by simply putting the new tiles over the existing ones. A friend who is a handyman said he would look at the place and give me a quote. He went there without me and without my permission ripped the entire bathroom out including the new tiles, the old tiles and the underlying gyprock. I only knew about it when he sent me photos. I was obviously shocked and he said he was doing me a favor as it all needed to be ripped out to start again. The bathroom was almost finished off and is now completely gutted. What I'm hoping someone can tell me is, did it actually need to be gutted to start again or did he needlessly demolish the bathroom? What was going to cost about $200 is now going to cost at least $1200.