Tiger Woods and girlfriend Lindsey Vonn are super-friendly with the pro-golfer’s ex-wife Elin Nordegren and her billionaire boyfriend Chris Cline, according to Us Weekly. When they are not going on double dates, Nordegren has been busy attending Rollins College and even gave a graduation speech there this weekend. Tiger Woods’ ex-wife took some dings at her former husband with whom she has two children, Sam Alexis, 6, and Charlie Axel, 5.

Tiger Woods’ girlfriend Vonn and Nordegren “can be a happy foursome now that Elin has a guy even richer than Tiger," an insider tells Us. "They've hung out at the Seminole Club [in Florida]." Woods, 38, and Nordegren finalized their divorce in 2010 after his epic cheating scandals surfaced. The golfer went public with his relationship with Vonn, a four time World champion alpine skier, in March 2013. Nordegren and Cline, a 54-year-old coal tycoon, who is also her Florida neighbor, began dating around the same time. He's previously been married twice and has four children.

"After meeting [Vonn], [Nordegren] found she actually liked her," a source told Us of Nordegren, 34. "You'd think it would be weird, but Elin loves Lindsey and they talk all the time. Elin likes that Lindsey is a strong woman."

Tiger Woods' famous ex-wife took the stage at her graduation ceremony at Rollins College in Winter Park, Fla. on Saturday, May 10. Nordegren, 34, gave a 10-minute speech after being named the 2014 Outstanding Graduating Senior by the Florida college. The Swedish former model graduated from the university with a 3.96 grade-point average after working through the program over nine years. "Yes, nine years is a pretty long time," Nordegren joked.

"When I received the phone call informing me about the honor of speaking today, I felt really happy but I also was a little surprised because I've been called 'a woman with no words' in the media and criticized for not talking very much," she said.

"When I entered my student advisor office in the fall of 2005, I was 25 years old, I had just recently moved to America, I was married without children...It was right after I had taken [a class in] communications and the media that I was unexpectedly thrust into the media limelight," she continued. "I probably should have taken more notes in that class!"

See Elin Nordegren’s speech below!