Paranormal Romance Ghosts

I quite believe in ghosts having some glancing experience with entities I believe were ghosts and living in a town where there is at least one house haunted by a ghost. I'm not sure about having a ghost as a hero or a heroine. The thought of loving a spirit being doesn't seem possible. I remember the Ghost and Mrs. Muir when that was on TV. I just never enjoyed watching the show.

How do you feel about a ghost as a hero or a heroine? Do you know any good stories that use a ghost for this purpose? Since I love to read, I'm always up for new books.

My real objsction to a ghost as a hero or heroine is the inability to touch this person. Also to have a ghostly hand touch one gives me shivers and makes me think horror story, a genre I don't like to read.