Kaley Cuoco explains why she rehomed her beloved dog Shirley

Kaley Cuoco shares a difficult decision in his life.

The Big Bang theory alum gave more insight into why she chose to rehome her dog Shirley, who recently died of cancer, after her fiance Tom Pelphrey moved in.

“I started getting a lot of questions about where she was because it’s very unlike me to just stop writing about a dog that I’ve had since she was 6 weeks old,” Kaley explained in a November 24 Instagram video. “The love of my life came into my life, Tom – who is also a mega dog lover – moved across the country with his beautiful German Shepherd, Blue, a few years ago. Unfortunately Blue and Shirley started getting into some mega fights Shirley was stuck determined to kill him.”

“Shirley had been in other dogfights before and it really scared me,” she continued. “I started to get really worried that she was going to hurt other animals. I had to make a very, very difficult decision. She just couldn’t live with us with the way she was behaving.”