Its really hard to tell but is this cheating?

No, she's not cheating on you. You two have never agreed that you were in an exclusive relationship. Hence, the two of you are free to date others. However, if this is bothering you, bring it up! Ask her if she's dating other people. Tell her that you want to be in an exclusive relationship and see what she says. It's possible that she just has a good friend named Jorge who drives her to school or something.