Jennifer Love Hewitt, who split from fiance Ross McCall earlier this month, is embroiled in a custody battle over her dog.

Despite an amicable split from fiance Ross McCall earlier this month, neither party can bear to be separated from their boxer Mona.

Jennifer Love Hewitt is "having a tough time" coping with her relationship breakdown. The 29-year-old "Ghost Whisperer" star - who split with fiance Ross McCall over Christmas - is back on the set of her hit show, but seems "quiet" and "sad."

A source told People magazine: "She is usually very bubbly, but she is more quiet and seems sad. She usually hangs out with the crew between takes, but now she is only hanging out with her bodyguard."

Jennifer Love Hewitt and Ross McCall have ended their engagement. "The Ghost Whisperer" star and the "Band Of Brothers" actor - who got engaged in November 2007 after two years together - have stunned friends and family with their decision to separate.

A source close to the couple said: "They broke up over the holidays and have ended their engagement."