Robert Pattinson: Awesome friend or a hottie with a serious case of “The Stalkers?”

We hear Pattinson is so wowed by his Twilight co-star, Kristen Stewart, he sends the actress over 400 text messages a month.

“He says a day doesn’t feel right unless he talks to her a dozen times a day – anything that goes through his mind, he relays to her,” a pal of the screen heartthrob blabbed in last week’s issue of The National Enquirer.

Robert and Kristen are reportedly “inseparable” on the Toronto set of their new film, The Twilight Saga: Eclipse, where they will reprise their roles as vampire Edward and his mortal love Bella.