Its so easy to be taken for granted and sometimes its so easy to be fooled in a relationship,in general, with friends and family.
We tend to be true and honest with a person,share all that we have,financially as well as emotonally, but later when you learn that they dont reciprocate in the same mannner, it hurts. Probably they feel we are not close enough to them.
We consider a few people in life really close and expect to help them in case of emergency, but many times they reject it or dont even come to you because they have not accepted you the way you think you want to be. Trying really hard to include yourself in one's company sometimes can be in vain since the other person just doesn't think you are eligible or fit enough to be in their inner circle. They dont mind accepting help or advice from anyone else but you.
Why should one take the trouble asking if they need our support when we are just not required. Only with experience do we understand these things and only then we learn to be careful with any situation or person. Such experiences last a lifetime and the next time we offer help,we need to give it a second thought and maybe even a third.