Lmao... Sorry, but you are taking this very seriously.
I think I know what you are going through. Because I used to have oneitis too.
Hahaha, I used to think that she was perfect... It was PAINFULLY afc. I write it now, and it doesn't feel right anymore. Hell no, these ideas are out of my mind for good now. I was like you too, EXACTLY: No girls excite me, lalala, shes the only one.
SPIN.
MORE.
PLATES.
And get rid of these poisonous energies too. Don't think about it more.
Just believe in this: Hot girls, they are everywhere.
I will be very honest with you.
In the process of writing this post, I got that sickening feeling once again. It stings!! And I know FOR SURE that my problem is, and will never EVER be oneitis. I just reminded myself of "these times" and the feelings got back.
I am eating an apple and drinking mineral water, LOL I will probably eat a pear later or a kiwi, whatever. I am also watching a Bruce Lee movie. In 10 minutes I won't even remember any of this.
What you give emotional energy, it GROWS. (This is also why it is GREAT to have some sort of hobbies to occupy your mind with. What are your passions?) So don't think about it. Why? Because, who cares if she goes away. There are tons of more girls out there.
The reasons you may not believe in this are:
You don't spin enough plates
You haven't got rid of the feelings you have in you. I am pretty confident that that infatuation (there is a good one, but then there is a type that will destroy you) is also very physical, and a sign of something wrong chemically in your body. Be careful. Some may think I am over reacting but if you don't take care of this it can very well reach epic proportions. You said it very well: Head on the clouds.
She doesn't matter. Don't think about it anymore if you don't want to.
BTW, what the hell is this crap of "she's the only one that excites me?"???????????????????????????
Damn, you SERIOUSLY need to get out in a club where there are sooooooooo many hot women... If you are really feeling like this, home boy there is something wrong with you I don't know what the hell is your problem! (I am just writing this in a kind of joking way btw hehe).
Either that, or, (and i've touched this point earlier) there is something wrong with you, like testosterone deficiency or something. Just a tought. IMO it would really help you to not masturbate in a week... You will get more excited with girls and life. Try it!
Btw, diet to me is very important... If something hits me hard, if I take a huge blow and feel weak in my knees... I feel aware of the changes in my body... I try and, as fast as I can, grab something to eat, or do something to bring my body back to homeostasis. Exercise, for example... Tai chi, every day! Nothing should keep you down, especially nothing as meaningless as ONE girl. Sure, you may like her. You want her... You even pursue her. But you are aware you do NOT need her either. So all negative emotions are strictly controlled. It NEVER gets to a point that it over-runs you. I hope my message got through. Good luck man! : D