AceShowbiz - Denise Richards is struggling to explain ex-husband Charlie Sheen's problems to their young daughters, revealing "it's not easy" trying to help them understand his issues. The "Two and a Half Men" star hit the headlines last month after a wild night of partying with porn stars and pals at his Hollywood home ended with a hospital visit. The actor was treated for a hernia and is now currently undergoing rehab treatment at his home in Los Angeles.

The incident came just months after police were called to Sheen's New York hotel suite in October 2010 after he allegedly trashed the room in a rage during a night of passion with an adult actress. Richards and her two girls, Sam, six, and five-year-old Lola, were staying in the same hotel at the time, and the former Bond girl admits dealing with Sheen's dramas have been difficult.

She tells U.S. talk show "The View", "I mean, you know this is Charlie's lifestyle. He makes no bones about it. And it is what it is... What can you say? It's a very difficult situation in dealing with the subject. This has been something I have dealt with for years. This is not a new situation. There are times where his life is more colorful than others, more public than others, and as the kids get older it's a difficult thing. I'm learning as I go too."

She adds, "I have never had to deal with this and this was a subject I had hoped to talk with my children about as they got older. But it's hard. I mean there are books that are out there. One in particular... it explains addiction to children. There are images and pictures that a child can understand. I don't know what they fully comprehend from these conversations. They don't know what some of these things are. So I do the best I can and it's not easy."

Sheen and Richards were married from 2002 to 2005. The troubled actor is currently in divorce proceedings with estranged wife Brooke Mueller, following their Christmas Day bust-up in 2009.