To me, kindness is a way of life. To expect something for simply being a decent person is, as you say, not gonna get it. And it shouldn’t, because it’s fake. A truly nice person seeks nothing in return. While there is some truth to be said about some women wanting the “bad boy,” a guy wanting to hook up and, when rejected, tosses out, “It’s because I’m a nice guy” is NOT truly “nice.” It’s an act to get laid. Best to look for that really nice guy who asked you for nothing but, maybe, a bit of your time. Just my two pennies.