Girls do you date multiple guys? Read details please?

This girl and I have know each other about a year and a half... We've been dating as of the last two months because I finally made a move on her and basically told her I was crazy about her. We hang out alot, kiss alot and are very very affectionate, she says shes lucky I never gave up on her, and she tells me she misses me when I'm away (we live a couple hours apart), her best friend tells me she's "smitten". Girls, when you are in a situation like that with a guy do you ever date multiple guys or have interest in multiple guys? Or when you're at that puppy love "smitten" stage do you see only the guy you are into?