Being faithful most important: Pixie Lott

London, April 16 (IANS) Singer Pixie Lott gives prime importance to being faithful in a relationship. She says romance between two people ends as soon as one of them wants to be with someone else.

The 20-year-old, who is dating model Oliver Cheshire since two years, says she can't understand why some people are happy to be in open relationships, reports contactmusic.com.

"It's 100 percent important to be faithful. I don't believe in open relationships. If you want to be with someone else, you shouldn't be in a relationship in the first place," said Lott.

The singer says she's very happy with Cheshire, although she has no plans to move in with him in the near future.

"It's the longest and most serious relationship I've ever had. We're happy with how it's going and have decided not to move in together. But he usually stays at mine anyway," she added.