I lost my daughter and granddaughter yesterday?

I had been talking to this guy for one day online. he got really upset that i did not call him first even before i called my parents. He yelled at my best friend (she was friends with him) because he said that if the roles were reversed then he would have called me. He yelled at me and said that the only way he could show me compion is by talking to me for a couple of hours on the phone. I blocked his number and he called from a neighbors house. he said that i should have told him and that I do not understand how upset he is. I only talked to this guy for a couple of hours online. I went to the store and he IM ed a couple of hours later asking me why I did not get back to him he was worried about me. How do I get rid of him? I am grieving so I don't have all my bearings but this does not seem normal. He got really really upset He said that I don't understand what he is going through. Am i in the wrong here? He told me today that he bought a plane ticket to where I live so we can comfort each other but he has to stay at my house because that is the only nice way to treat a guest. I did not invite him. I never gave him my number he called my hob and said that he was my brother but could not get a hold of me. I need to know if i am blowing this out of proportion