Helio Castroneves: Relationship with Ali Vazquez is a Test

Helio Castroneves has postponed his wedding with Ali Vazquez, referring to it as a "big test," due to the hectic schedule of Dancing with the Stars.

In an interview with TV Guide, the race car driver said: "It's been very hard. But for me to ask someone to marry me and become the mother of my children? It's because I know what I want. I've had girlfriends before who said, ‘You should stay here with me,' and I'm sorry, but that's not going to work.

That person has to understand that I'm doing something that I love: racing, and now dancing. In the beginning with Ali, it was hard, and it goes up and down. But I think everyone has those moments."

Ironically, Castronves' partner this season, Julianne Hough, can certainly relate: she canceled her wedding last year around this time. But don't be quick to assume that means these two are a couple.

"I'm not doing anything," Helio said. "Julianne and I have been incredible professionals and I think that has helped our teamship because we're not trying to be anything else. I'm not going to be fooling around. I already did that. I had my fun, and it's done."

As for his Vazquez, Castroneves says they're both feeling the strain.

"It's been tough on her, obviously," he said. "But she needs to understand that I am doing something that is an opportunity of a lifetime. We're engaged, we're not married. And if something goes wrong, this is the time to see. It's better to find out now."

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.