Does the man could be a real businessman??

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Yesterday afternoon,someone called me when I stayed in my office.Through his words,I realized his company locates in Germany and he's a buyer who in the marketing for metal parts of plastic mold.Undeniable,we had a very good communication.After the call,he sent me an email with his website.And I can find all contact information in his signature-very FORMAL.I got his Skype then add him. We started to talk in Skype. I sent him our synopsis and also introduced some important points about my company.He just gave me such response as "yes""oh""er".I'm a little confused but still said Happy Mid-Autumn Festival to him politely when goodbye(we'll catch this festival next month). Unexpectedly,he said,will you come here tonight? I want to have dinner with you. I told him we'll treat them when he come to visit our factory with his customer. He replied,NO,just TONIGHT. I do feel ANGRY!Can a real businessman could be like this??This man just throw away his courtesy! My boyfriend told me there's no even telephone NO.and address in his website which he gave me!I'm confused again!I canceled his Skype from my list this morning.People must disdain SUCH LOUSY BUSINESS even if it values one thousand million!!!!! How do you think so?