I really think this is because of social media, I know that people have always been a little bit of a gossip and they love to find out whatever they can about everyone, and we know this is true because people have love to find whatever they can about their favorite stars since forever and they could read about that for eternity if time permitted it, however with the advent of social media that behavior that in the past was reserved for stars now applies to everyone.

I don't know if you guys are still dating but that is precisely one of the things that bothers me, people ask you financial information as if it is nothing on the first five minutes of the interaction and then they get offended when you don't answer or evade the question, they do not realize that if you never see each other again you have given this person very valuable information about how much you earn, how much money you have in your bank account and similar stuff, I do not want strangers with that information on their head because you do not know who they can share that information with and that's dangerous, social media has created a world which went from "share whatever you wanted to share with the world" to "you have to share everything and if you don't you're suspicious".