DO YOU THINK THAT SHE IS INTERESTED!!!!!!?

Yes she likes you. Most girls wouldn't waste their time talking a guy for a long period of time if she didn't like the guy. The laughs is one key observation, she laughs, that's a flirting playful talk there. :) Plus the texting, taking time and effort to talk to you, so you get to know her better. Definately, she likes you.