Scarlett Johansson tells all about being single:

"We live in a world today where if two people are single – and one's a guy and one's a girl and they're both famous – you're going to be linked with somebody," the actress, 22, tells Seventeen for its May issue, when asked about the two of them. "If it's somebody one week, it's going to be somebody else the next week. It's either me or Jessica Biel."

Her first love, she also reveals to Seventeen, was "a great boyfriend in high school. ... I totally thought we were going to be together forever, which is how it should be." When she is with a boyfriend, she says, "If someone is straightforward with me, I'm very confident. But if he's playing a weird mind game, I get very self-conscious."

"I can't stand mind games," she says. "But I think you should be mysterious and flirtatious. You should always have some mystery in a relationship. You don't wanna know what the person's thinking all the time. And you don't want him to know what you're thinking all the time."