What do you do when u like someone that you cant have????? I need help ASAP?

WOW OK....I never thought i would be asking for advice on a web site but my issue is tearing me apart and i dont know what to do. I like this guy and we are coworkers. One day he came in and wrote his number down and said let me know when you want lunch. so i we went out on a lunch date that same day and we expressed how much we admired each other. Things went great and i could tell he liked me.... So we said we would see where things lead.. Ok so we started hanging out at my house and we cuddled and what not... I could tell he wanted to do more but i made it clear to him im not the girl who have with friends so nothing happened that day. lol so one week later he came over again and we fell asleep then he woke up and started dong all the right things ok and got me weak and we did the oral thing thats it... afterwards i felt like we shouldnt have did anything because i really liked him and did not want that type of relationship but he seem to be fine with what happen. things started changing when i told him that then he told me he would keep his distance because he didnt want me feeling guilty or having negative thoughts of him. so instantly i felt like what the hell so now he want distance since i said no no oral??? but he said it would be hard for him to not want to do anything if we were together. but i was thinking ok since u like me why would u keep ur distance regardless of the ???? So he said ok nothing wont change.. I expressed i wanted something more and he said he didnt want to be in a relationship because he wouldnt have time.... the facts: he was always working and coaching basketball. But i felt like he could make time if he really wanted to. he didnt have time for me but dammit somehow i fell for him and i can not believe it!! This has never happen before.... Everytime he come in i melt and he smiles and tell me how good i look and we text all day.... I realized that we never talk on the phone and im giving him more attention then he is giving me. When i did call he was busy.. he wouldnt call bac afterwards and i would confront him about it... i felt he would avoid my calls at time. he blew up saying he dont have to avoid my calls he too busy.. He didnt text as much then and my heart felt like it was breaking and i didnt know how to act around him now. so i started backing way from him as well.. I stop texting him completely i realized i was falling for someone that maybe didnt like me the way i like him.. So here comes tueday morning he texts me as usual saying can u open my clsroom door then come in and make copies and as normal tells me i look good and gives me a hug.. At the moment im still mad and hurt and i knwo he could tell... he later sends me a text saying "My mouth watered when i saw u today. My body wants you. If i was ready to settle down, my whole being would want you. You're and awesome friend and person though" I just texted bac ur a good person too.. I dont know what to make of that. just that he doesnt want a relationship and he isnt feeling me the way i like him which is cool. I just need to figure out how can i get over him??? a big part of me is mad at him because i feel like i was mislead a little. I have to see him everyday at work... I can not stop thinking of him and it hurts because i want to be with him.....It feels like love to me but damn that is crazy right?