Is Robert Pattinson not in love with Kristen Stewart? Maybe, that's why the couple has yet to go all out with their relationship. Rumours are now abuzz that Pattinson is not really in love with Stewart, after he was quoted that he was afraid to fall in love.

In an interview with OK/ Magazine recently, Pattinson was quoted as saying that, "Yeah. I'm more self conscious. You can't afford to fail, but you're kind of afraid of succeeding too."

The Hollywood heartthrob Pattinson is apparently afraid of a serious relationship, and a little bit worrysome when it comes to falling in love. The pronouncement generated speculations that the reason why Pattinson and Stewart have yet to come clean with their much-hyped relationship status is because the actor is not serious enough.

In a recent interview, Stewart still refused to talk about her relationship with Twilight hottie Pattinson. Kristen kept mum when asked about Pattinson.

"It doesn't matter how many times I've spoken to someone or how well they know me, I'm just not going to talk about that," she told the United Kingdom's Telegraph.

But even if Stewart clams up about her relationship with Pattinson, Kristen reveals that she is very much aware that the public is keeping tabs on the couple's movement.

The latest reports on the romance between Twilight co-stars Pattinson and Stewart had steamed down with the media focusing largely on the possible fork in their careers after the Twilight Saga wraps up. There's s still no news if the two will be pairing up for a non-Twilight movie.

Kristen had been featured in two movies, Welcome to the Rileys, in which she got good reviews for her performance as a prostitute and On the Road, opposite fellow Twilight actor Dakota Fanning. Stewart is no stranger to serious acting. She played the mistress of Ryan Reynolds in Adventureland and Jodie Foster's ill daughter in Panic Room.

Robert had recently wrapped up filming Water for Elephants, where he co-stars with Reese Witherspoon, and will next be seen opposite Emma Watson in Dark Arc. Pattinson also had a non-Twilight romance Remember Me.