Tim Tebow won't be scoring in an NFL end zone anytime soon, but it's his unwillingness to score in the bedroom that cost him his relationship with Olivia Culpo.

The friends of the former Miss Universe revealed she called off her relationship with the quarterback due to not being able to seal the deal with him, according to the New York Daily News. Tebow, a devout Christian, has taken a vow of celibacy, which was apparently too much for Culpo to handle.

Lack Of NFL Teams Interested In Tim Tebow

The couple was an item for two months, with rumors first circulating that they began dating after being set up in October. The end of the relationship was likely a crushing blow for the quarterback.

"He was really into her," a source close to Culpo told the Daily News, "he was sending her love letters and cute notes and professing his love for her."

Tim Tebow's Relationship With Olivia Culpo Was Shrouded In Mystery

Though the sparks were there, the model just couldn't continue on in the sex-less relationship, though it seems like Tebow is having a tough time dealing with it.

"She had to break up with him because she just couldn't handle it," the source said. "He still hits her up, but she just can't deal with the sex thing. He's pretty adamant about it, I guess."

Culpo was in a relationship with Nick Jonas for over two years, but it came to an end in June. Three months later, she started things up with Tebow, but it looks like once again she's on the prowl. The beauty queen's seductive looks weren't enough to get Tebow to break his vows, despite the fact that she was able to convince Jonas to ditch the promise ring he wore, ending his goal to save himself for marriage.

Tebow's no-sex-before-marriage rule also cost him another relationship. The free agent signal caller was linked to Disney Channel star Camilla Belle in 2009, but there were reports she called it quits on the relationship for the same reason.

It's been a rough year for Tebow. First he was cut by the Eagles at the end of the preseason, and now he lost his beautiful bombshell girlfriend.

For more coverage, follow us on Twitter @SportsWN and Like Us on Facebook