The 29-year-old "Scream Queens" actress was spotted getting cosy with the "One Tree Hill" alum, 35, on a dinner date in Santa Monica on Monday, May 9, reported Us magazine.
"It's new," a source said about the couple's relationship.
An eyewitness at the dinner venue said, "They were sitting at the bar all cuddly. He pushed her chair in for her and everything."
"They were interlocked the whole time they were sitting at the counter, like arms wrapped around each other at their seats," a second onlooker added. "At one point ... They had either just kissed or were super close talking."
The new relationship comes several months after Michele broke up with her boyfriend Matthew Paetz after nearly two years of dating.