Dunno what to do

I dunno what to do Patrick keep calling me and he ask his sister to talk to me I ask him on facebook why u call me he said that he just want to hear my voice I was so angry he call me just because of that he can hear my voice in school what is the point of calling me wasting money and time sia. I was thinking am I serious to him and is he serious to me?? I am thinking that or should I break up with him?? I really dunno what to do this is the first time that I am serious to a boy I never been so serious to a boy before if he break up with me for sure I will cry like hell because I like him alot that I dunno how to say this is hard to men should I be with him or should I break up with him??? I REALLY DUNNO WHAT TO DO!!!???