What to do if I'm in love with a guy friend who is a coworker as well?

We kissed twice last year and are not able to be in a relationship because he has issues with the fact I'm a different religion as he. We met at work and I developed a crush on him 6 months before the first kiss. During the past year we have grown very close and I have developeddeeper feelings for him. I think I am now in love with him. I know for a fact he has no romantic feelings for me - most of it has to do with religion. For a longtime I've felt as if he's strung me along - the fact is is that in the past I've tried to stop talking to him but we work in the same office and have the se friends. So severing ties is very hard since I see him every day. He recently told me he's dating. I knew this would come. I've always felt maybe oneday he would come around but I always known it won't. I feel emotionally attached to him and plus we are friends and coworkers. What should I do now that he is dating? I don't want to get attached even more for even more heartbreak if he has a successful relationship. If we didn't work together it would be so much easier but I'm not leaving my job anytime soon and neither is he.

so you are a stupid girl and you do not understang you are boring and you disturb a next wedding, maybe you do want a part of an happyness, that is better stolen of course, of an another girl.
I, i should do nothing and i will go whithout clothes in a room, by chance someone will say to him the number of the room and the key of the hotel.

clearly, you have nothing to do in his life.

I am struggling to understand the issue here- He has dumped you - he does not want you - he has said NO to you - what part of that do you not understand ? Do not make yourself a doormat for anyone , ever ! have your pride , walk away and better yourself in doing so - it may feel so , but it is NOT the end of the world. wake up and smell the roses girl, a whole future awaits you and the world awaits your calling throw the trash in the bin , he is true trash , and carry on with your life NOW !