Resenting people for not putting in as much effort as you?

I can't help but do this every now and then. I like connecting with people and doing things for people. I go out of my way for people, even acquaintances. Sometimes people are just as friendly in return, and we make great friends. Other times I don't feel the same friendliness in return, and naturally tend to resent people for not appreciating my effort--sometimes feeling like I'm being walked over. I even feel like people don't take me as seriously. However, I feel bad about this and realize that not everyone is as interested in being buds as me. (All of my good friends are NFs; I have a harder time with other types.)