Hi Missy!
Thank you for the answer.
I tried PW and PWD on him first time about seven months ago. He was on a long business trip  (this trip lasted 3 months) at that time. As I mentioned before, we are no so close even on work issues so we didn't contact at all during his trip.
Then I saw him at NY party firstly after the long break and he looked like he is a little crazy about me. He constantly sppinned around me, gazed at me and looked like he was going to talk we me about very important issue. In this time he looked like he wanted to rape me (in a good way ).  But then his girlfriend arrived at this party too. He tried to hide that fact that she is his girlfriend (never approached to her for the whole evening and looked awkward on all questions from his friends about her). But nothing happend at that party. I had left the party before him but then I heard from colleagues that he left the party after 10 minutes after me.
I tried to throw out him from my head because I thougth that we will not work together anymore (our previous project closed). But suddenly we appeared in the new project together. I was shoked and happy in the same time. He has a greater impact in that company where we both work so I thought that it wasn' a randomness.
I ceased to do PW and PWD. But suddenly he taked a vacation for a week and I knew that he went to travel with his girlfriend (that one that he ignore at NY party). I was shoked and devasted. It became obvious for me that I was wrong about his true feelings to me...
So now the result is the following - our project has closed and we are in the different projects at this moment, he moved to another office so I don't see him at all, we no contact at all (once I tried send to him a work-related messege in Skype then got back a dry answer from him and the the conversation was closed ). Also he continue to date with that girl.
I don't know what to do further... I feel cheated and don't understand why it is all comleted in a such sad way for me..
 

I've just read "Manifesting Love" and have known about the love spell. There is a target on which I want to try it but this is scared me a little bit...  Would there any negative consequences after this?  
The guy which I want to try to seduce is dating with another woman. I had tried PW and PWD sessions with him. As the result, I see the reaction from him, see that he wants me but doubting so still nothing serious. We worked on the same project some time but we are not close so much to each other. Have anybody on this forum with similar situation who try the love spell? If yes, would you please share with your results?

Thank you!