Sadness

Why am I so sad today? Is it because of B or of D?
I think it is the email from D. I was being nice to D in his situation with C (A), and things took a different turn. Am I ever falling for him? Is he the person of my dream or just another frog I have to kiss to find a prince? I think I am feeling this way because of the ideas of being turned down and it caught me by surprises since he was the one that came on to me, so strong. Is he afraid of falling or am I just not worth his try? Whatever it is, he hurts my feeling and I am sad.
With B, I do not know what it is any more. Whatever our status is, I am not OK with it. I will talk to him soon to see what it is and where it is heading. I hate being unknown. When he left for Japan, things are not the same. Is he just as confused as me or he just waits for me to be tired out all the whole thing and call it off? Who is B anyway? What do I know about him?
I do not like myself in this situation at all. It makes me weak. I want to go back to my normal self, the one before all of these relationship ordeals.
Please help me to get back to my happy self.