Translation of momentáneo

I would rather like that you write through the messaging system on this site and not to my private email address. All the info is gathered here online and I would like to keep is this way. It is nothing personal.
I have not received your contact request at MSN yet, but I will look it up tonight. My user name is the same as it is here. What it your user name there, also the same as on this website?
So you want to know what I'm doing? I am 22 years old and I am studying medicine at the university in Atlanta. I want to learn German because I have a German girlfriend. We want to get married.