<human>: Summarize the given text in a few sentences.

Sorry if this is a rambley, first time posting and all that shit, i just wanna known from a party that isnt me or someone close to me what to think?

So I met this guy when we stayed at the same airport hotel, he was going to visit his family, and i was on my way home after a year away. not relevant but whatever. we didnt hook up or anything, i saw him in the morning too and we had a drink at a bar in the airport and chatted about coming to visit each other as we both love travelling and i learnt he thought i was like 25, i corrected him and that was fine. we exchanged contact details and got on our flights.

we kept in contact  through skype which was nice and still talked about coming to see each other's home countries, I'm just a student so i need to save up before i can even consider another holiday! Recently he told me he wants to pay for my flights to come see him in july/august and stay in his home which is a lovely idea but im worried, I would be coming from australia to the US to stay with someone i barely know and with no one else in the country i could turn to if there was trouble. 

I also dont like thinking this but why?? does he have ulterior motives? he is an engineer and is about to buy a house, why cant he get a girlfriend when he is an attractive confident well off man? what does he want me for?  I know he expects sex, which is fine.
<bot>: a 27 yr old man wants to fly me 19 F from aussie to the us, and i dont know what to think