Jealous

I just don't know why, such feeling just come into my senses when I found out the person I had given the opportunity to have me as a close friend had been with somebody else after a month we haven't talk. It's just so unbearable since I almost give everything I can offer, yet in just a fews days, there, somebody had already replaced me.. whew!.... Is it that bad being such a easy to to fall in even-though the type of relation that had going between us is not that approve by most people.. Well, I just figured out maybe this thing must be happen for me to know what really the things this person i trusted wants from me...