Tiger, given the opportunity, I'd go back for a few more years; the dirt and chaos are a small price to pay.
Globe, when I said things are changing, I was referring to the courtship culture also. In the past Indians were indeed, as you say, very conservative, what with arranged marriages, and marrying within caste etc.
However, and I'm only going by personal experience of female behavior of a very small strata of Indian society, alongside discussions with male members of the aforementioned society; it seems that the wealthy youth want to let go of all traditions, and they behave in a manner, which they deem to be 'western'. Of course, this behavior is nothing close to the average western youth, it is an extreme. The youth want to be western, and given that this youth clearly does not have the kind of every day contact with western society, their opinion of how things are is, suffice to say, a little warped. Their exposure to the west is vacations, and films, films like American Pie, and Road Trip. Take that, and add to it ridiculous amounts of money, when you consider both the average income of people in the country, and the cost of living (both very low) (the reason for this wealth in small pockets of society in India is because the export trade is quite a large one, take the fact that they produce at Indian rates, but sell at western prices, and your part of the way there. Of course it would be feeble to say that it is simply exporters who earn a lot in India, but this is a key reason, and all other industries are affected because of this. There is money to be made in the home industry, which I was part of, but as an I-Banker, I knew that it was very much the export market that fueled things, domestic consumers simply did not have the spending power - okay now I'm going into a load of economic justification, which I am probably boring you with, but I'm sure you see my point.
Regardless, as I was saying, given that these people have this kind of money, and the fact that the Indian family is somewhat different from the western model, i.e. an Indian father will often set his children up in business, rather than leave them on there own feet, right of wrong is not something I want to get into, all I'm saying here is that is how it is. The result, there are a lot of spoilt twenty-some things, who really don't work, but have serious cash. Given that in many ways, there is no way one can deny that India still operates like a third world country, you can bribe just about anyone to do just about anything. I was at a meeting once with the CEO of my firm and India's Chancellor of the Exchequer, there was legislation that my CEO wanted changed so that we could manage overseas investment without so much red-tape, I distinctly remember the chancellor saying " Kaar sagteh, par bahi, paasa to lagiga" = "We can do it brother (term of affection, rather than them being genetic brothers), but its going to cost you". Given that there were third parties in the meeting this was totally out in the open, it's certainly not something you would see in the west.
Basically, these kids, especially the girls, want to have as much sex as possible, and the guys use how much pull they have, or who there father is as game.
Another thing that I wanted to flag up was that in my opinion, regarding the girls who were after you, it is unlikely that they wanted a one-way ticket to the US, rather it was your white skin.