Always remember, someone’s effort is a reflection of their interest in you. 

It’s a pretty simple concept here. If someone doesn’t give you the time of day then their level of interest in you is jack shit. They don’t care. Not one bit. Pay attention to the short answers they give you or their poor body language towards you. If this is the case back the fuck up and go the other away. Why continue to try to be involved in their lives if they put ZERO effort in towards you? Move on and put interest in other’s that want you to be connected to you. Period.