What does it mean for a boy to call his girlfriend?

This shows that he is an avant-garde type of boy. This may be what he said casually. Often this situation will only appear aimlessly, estranged and embarrassed. If you like him, congratulations, he doesn't exclude you, but he certainly doesn't know that you like him. (If he knows: whether he likes you or not, he will never ask your buddy to tell you,) Then don't confess, because he is now. If you suddenly make him change his feelings for you, 80% will be counterproductive. The best way is to be indifferent, talk to him often and express his outlook on life and love (this can only be taken over, don't talk for a long time, don't let him think that you are demanding on feelings). Let him like you fundamentally, and then you will be able to trap his heart and you will succeed. You can ask if you don't understand.