Yep, and every one of them that I've known, if they had any kind of options, got married by the time they were 25, most by the time they were 22, because they couldn't wait any longer.
And at the very least, they dated during the process while still waiting.
Show me any girl he's been linked to romantically, so much as holding hands at a restaurant. I don't think that's ever happened, and he's 27.
There were some drop dead gorgeous girls that were regular attendees of Campus Crusade when I was in school. Tebow could have his pick of that crew, and they could've done all the not sexing together that they wanted, yet he doesn't even consider starting a relationship.
Usually, even if you're saving yourself, you date and try to find someone who you might keep around for companionship. You can still wear your purity rings or whatever and be dating.
Just saying, the lack of any of that tends to raise some red flags. It's not just "saving yourself". I've seen plenty of people do that, but they don't completely exclude themselves from the dating pool, unless they just don't have options. Tebow doesn't have that problem.
As an aside, this is one of the reasons that you've seen so many gay men in the priesthood in Catholicism. If they weren't interested in girls at all, the easiest way to hide or protect that excuse has always been to pursue priesthood. That way no one questions them about their lack of dating life....and their real dating life just stays hidden.