Billy Zane calls his girlfriend his ''wife''.

The 48-year-old actor - who was previously married to Australian actress Lisa Collins and engaged to both Chilean model Leonor Varela and British beauty Kelly Brook - has been in a relationship with Candice Neill for two years but doesn't feel the need to make their union official.

Billy - who has 13-month-old daughter Eva Katerina with Candice - said: ''I am not sure we'll marry as we don't really need that ritual. I already call her my wife and although we are not bound by any legal papers, our commitment to each other is for life.'' Billy also revealed he didn't want his first date with Candice to end because they were having such a good time.

He told HELLO! magazine: ''I have known her sister for a long time as she is dating a good friend of mine and she set us up.

''We had our first date on the roof-top pool of one of the finer hotels in LA. We ended up talking for about 10 hours. We didn't want to say goodbye.''

The 'Titanic' actor also discussed his astonishment at finally finding his dream woman in his home country.

He said: ''She is such a lovely girl, probably the most genuine and nicest person I have ever had the pleasure of knowing. As well as being stunning, she is one of the kindest souls and a great mother. I am completely besotted.

''She was born in LA but she is a mix of Colombian, Irish, Mexican and French, it is an amazing cocktail.

''She is the first American girlfriend I've ever had; I searched the world over and finally found her right here in my backyard.''