I'm upset after he didn't want a relationship
Why would you be upset when they do not want you?
I'm used to always being in a relationship and I need a guy in my life.
Wanting another relationship is your thing one after another, but everyone doesn't have the same feelings as you do all the time. This can get to be draining for you, take some time to realize what you really want from a relationship. Then you can stay with one person rather than drift from one man to the other which is somewhat slutty.
That's a stupid idea, I haven't felt anything special from anyone.
I think that you should try to be more patient though. You should not get upset if someone does not like you. Who know, prince charming could be just around the corner.