i know your only 15 but damn dude this shouldnt even be a question. tell me what you hope to gain by texting her goodnight?
First, a text is bullshit anyways and a pussy form of communication that everyone knows is the bitch way of talking to someone. Second, saying goodnight to someone out of nowhere is equal to saying im thinking about you but have nothing important to say. she knows your sitting by your phone waiting for wahtever bullshit text she chooses to send back.
generaly, girls dont like a guy who needs them to be happy, they want a guy who is too good and could do better then what he is doing now.