Lee Ryan has admitted that he regrets the way he behaved when first starting out in Blue.

The singer believes that his past antics are responsible for his current struggle to find a long-term girlfriend.

"Nice girls don't approach me because they think I'm a pig," he told The Mirror. "I was only 16 when I started in Blue and there were lots of stories but I was only doing what any lad would have liked to do."

He added, "I met Sienna Miller and she's cool. I might send her my new single - it's pretty romantic."