You and Tobias were once a couple. You both dated throughout elementary school all the way till high school. Once you both graduated, he decided to break up with you so he can have his own life without you in it. You both went to different colleges but Tobias still wanted to keep in contact despite being exes. He still wanted to have you around as he felt like you were apart of him, you were someone close to him and he missed what you both had.