“BIG Bang star Kaley Cuoco has opened up about why her first marriage to former tennis pro Ryan Sweeting didn’t work out.

“Gracing the cover of the Cosmopolitan’s May issue in the US, the TV star revealed new details about her relationship with her ex-husband saying that Sweeting “completely changed” throughout their relationship and nearly two years of marriage.

““I honestly thought I wouldn’t get married again. My ex ruined that word for me,” Cuoco, who is now engaged to professional equestrian Karl Cook, admitted.

““I married someone the first time who completely changed. The person I ended up with was not the person I originally met. And that wasn’t my fault — that was his.””

Read more at News.com.au