His family likes me but does he ?

me and this guy has been dating abt a month, then we broke up for a cause. his sisters adds me on myspace after the break up and haves my number i never gave them my number i wonder if they like me so much does he still like me too ? and his new gf is somewhat nice but his sisters dont have her on their myspaces does this mean anything ? jw because in a way i kinda do want him back, but he seems happy with his new gf. please help