Jamie Foxx walks out on interview when asked about his girlfriend

JAMIE FOXX and KATIE HOLMES spent Valentine's Day together . . . playing basketball.  Jamie picked her up at her house, and they spent about an hour on the court.   So we can talk about this relationship now, right?  Not so fast.  Before the NBA All-Star Celebrity game on Friday night, Jamie was talking to Michael Smith from "SportsCenter" . . . and Michael tried to go there.

He said, quote, "Did you and Katie Holmes play basketball for Valentine's Day?"  Jamie didn't even answer.  He just took off his headset and walked away.