I would enjoy a dinner with someone who wants to get to know me much more than to be invited to dinner with someone who just wants to apply some 关系.  Dinner with a new acquaintance is a chance to get to know a person.  There is no further obligation.  After one dinner, you may decide that this person is wrong for you, and you can say know no to future invitations.

sorry "earn" not "ear"

It is not so different from the Chinese habit of meeting a foreigner at English corner, saying that they want to be friends, and asking for their mobile phone number, qq number, email address, and by the way, "how much money do you ear?".  Why do so many Chinese students think that friendship is equal to 方便面?  You don't just add water.  It takes time, like making 酸菜.

You seem very beautiful girl. Maybe They fell in love in first glance to your photo. In my opinion you can invite all of them to same place and in same time. I want to see their face in that time. I think It will be funny.

I don't agree with tonkoshkurov, in Australia ladies are much more likely to meet a man alone, as there are no cultural taboo's about it. In fact, I don't recall ever meeting a lady who wanted to bring along a third person.

On the other hand, in China, when I have met a lady for the first time, they will sometimesbring a friend or collegue, almost always a female friend. I think this is perfectly acceptable to any western man.