Every time.

You would think, after being taken advantage of so much, and often by the same people, that I would learn.
You would think, that after so many times of giving, and never getting, because the person gives to everyone but me, that I would learn.
You would think I could stop having feelings for someone that wants nothing to do with me.
You would think that after them making it perfectly clear, my brain could get through to my heart.
You would think I wouldn't be such an idiot.

Well, that's what you get for thinking.