Prince Harry likes to stay in touch with his ex girlfriends. Our favorite redheaded royal reportedly reached out to former flame Caroline Flack, who used to date One Direction singer Harry Styles! This news comes right after Prince Harry was spotted partying with his other ex girlfriend Chelsy Davy at a friend's wedding.

"They have been in contact by phone," a source told the Daily Mail on Sunday about Prince Harry reaching out to ex girlfriend Caroline Flack. "Harry likes to keep in touch with his old girlfriends and he knows Caroline is fun and discreet.

"In fact someone mentioned his name the other day and Caroline got flustered and went bright red."

According to the Mirror, Prince Harry and TV presenter Caroline Flack split up five years ago, in 2009, after he broke up with long-term girlfriend Chelsy Davy. Flack briefly dated One Direction singer Harry Styles in 2009, who at the age of 17 was 14 years younger than her. 

While Prince Harry may be reaching out to Caroline to stay in touch after all these years, his ex is currently dating music manager Jack Street. A source denied to Mirror Online there was anything romantic between the pair.

As we previously reported, the royal spent "a lot of time" with Chelsy Davy at a friend's wedding in June. According to the Christian Post, waiter Stephan Csonto told the Daily Mail that Prince Harry was frequently by Chelsy Davy's side.

"He spent a lot of time with Chelsy, but they seemed to be good friends," Csonto said.

Harry attended the wedding of friends Alexander Mavros and Alexandra von Krockow in Bratislava, Slovakia. He was among 250 guests that included his former girlfriend, Chelsy Davy.

Harry's latest ex girlfriend, Cressida Bonas, is meanwhile focusing on her acting career and recently made her stage debut at Hay-On-Wye Festival, E! Online reports. The 25-year-old has a minor role in the play "There's A Monster In The Lake" but received "rave reviews for her performance," Fashion & Style reports.

The play opens in London later this month.