Nick Jonas who? The singer's ex-girlfriend, former Miss Universe Olivia Culpo, has reportedly moved on and started a relationship with former NFL quarterback Tim Tebow. 

A source told Us Weekly that Culpo and Tebow have been dating since September after being set up by mutual friends. The 28-year-old former Philadelphia Eagles quarterback - who is known for being a devout Christian and said to be saving himself for marriage - has reportedly been wooing Culpo with an old-fashioned courtship, including penning love letters to the 23-year-old beauty queen. 

"Tim's super into her," a source said about the NFL player. "It's very new, but he thinks she is a goddess. He's very attentive and writes her sweet notes all the time."

The two have been spotted together on several occasions. Culpo and Tebow were first rumored to be dating in September, which was three months after the Miss Universe 2012 ended her two-year relationship with Nick Jonas.

"Tim and Olivia are dating but trying to keep out of the public eye as much as they can," a source told E! News. "Olivia had a hard time after the break up with Nick Jonas but took time for herself and focused on work and is in a great place now." 

The source continued: "She is very open to getting to know Tim and exploring the chance of something more with him. She is really attracted to Tim's personality. They are having a great time with each other and are looking to spend more time once the football season slows down. Olivia is excited [about] whats developing as they get to know each other more." 

A source told E! News at the time that Tebow is enjoying getting to know Olivia and finds it "really easy for him to talk to her. He thinks she is beyond beautiful as well. Things are new for them and exciting - it's only been about a month." 

Meanwhile, Jonas has reportedly hooked up with actress Kate Hudson. The two have yet to confirm the rumors, but they have continuously been spotted spending time with one another, party hopping in New York City last week and hanging out in Disney World and Miami last month.

However, a source told Us Weekly that Jonas still has Culpo on his mind, saying, "He's been writing new songs about her."