The girl i worked with that i was fucking at work for 2 years had worked there for 5 years with me
i fancied her right from the start and i engineered flriting and chatting to her on her first day of work
she had a long term boyfriend as i had a long term girlfriend

anyway in those situations it takes a LONG time to get somthing going on
and when i look back it wasnt worth it and i wouldnt do it again