<human>: Can you give me the gist of the text in a nutshell?

Dating a girl from another culture. Lots good about the relationship. Common professional interests, identical sex drives, and we respect each other, which is a new thing for me in relationships (always been with girls who kinda have a bad attitude about males). She totally loves me. 

But I have some serious concerns about long term viability. One concerns parents. My parents, upon learning that we were a thing, said, "remember, you are her ticket to stay in America." Her parents, upon learning that we were a real thing, wanted to know how much money I make (I'm a grad student), and wanted to make sure I was OK with their tradition of supporting parents in their retirement as a sign of respect (despite that they are well off enough to not need such help). GF is in agreement with her folks about this and says if I am not OK with it she will just have to make more money and do it herself. Also, GF says her parents could 'never know' that I was previously married and am now divorced. 

There are some other issues as well that I've been able to overcome/overlook (one example, she's not social, I am), but their combination makes me feel that a future with her is risky with lots of prior indications of trouble ahead. In my previous marriage I ignored those kinds of signs and paid a price for it, and I'm not wanting to repeat that history. At the same time, it is really nice to have a partner who is on board with me sexually whom I also get along with pretty well. 

Curious to know what others' experiences have been with a cross-cultural situation like this, especially if you have long-term experiences.
<bot>: Cultural differences really putting a crimp on my desire to take a relationship into marriage; my parents think she just wants a green card, her parents will expect me to support them. WTF.