Bobby Flay is gushing about his girlfriend

The 57-year-old chef had nothing but kind words for his girlfriend

I'm a very, very lucky person," Bobby said

"Christina, she's just a light in my life. She's so sweet

She just enhances everything that I'm able to participate in with her

Bobby is thrilled to have Christina in his life -- and Sophie is a fan of the writer too.

Sophie and Christina have a great relationship