The Problem With Me

I think I have a problem. I like people too easily. The I tend to do stuff for them. Of course with doing stuff for them, there is a subconscious expectation that they will appreciate my efforts and reciprocate as a result. Unfortunately, things do not always happen the way I would like them to. Then I get disillusioned, for a while that is, then the whole cycle begins...... Wonder when will I learn my lesson....... :(