Just got a strange text. is she playing me?? ?

ok ive been 'talking' to this girl for the past two months. pretty much i was contacted by an unknown number by a guy who was asking who i was. i guess she sent a pic of herself to him & my number mistakenly was attached to the message. strangely enough a few minutes after i recieved the first message from this unknown guy she contacted me telling me 'if you get a text from an unknown number just ignore it.. but anyways wyd?'.. needless to say, i didnt ignore the guy, i wanted to figure out if shes been dating this guy too! but he wasnt really working with me towards a common cause so i ended the convo. she explained to me that it was just her'friend'. my question to you guys is, IS SHE PLAYING ME or IS THERE A CHANCE IM OVER IZING IT?