Should I continue with this girl?

sounds like the type of girl that will kick you to the curb real fast if you get too clingy or jealous. Shes attracted to you, but not in love with you. Like most girls she just wants to have fun. If you want a relationship with her, you are going to have to appeal to her in a different way. Don't act jealous or clingy, let her do what she wants to do and do your best not to come off as a jerk about it. Act like those other guys don't bother you at all. Try to appeal to her romantically. The cardinal rule though, no negativity. Shes an upbeat girl and shes not gonna let you change that.