I think my new boss fancies me. He comes and sits next to me and starts random conversations, I catch him glancing at me all the time. I've noticed he doesn't do this with any other girls. We had a Xmas do and he kept asking me to dance, bought me drinks all night and I ended up in a pub with him and another colleague. He groped my bum at the end of the night and kept lightly touching me. I really like him but he has just split up with his wife and it is acrimonious. He is also my head of department so he is my 'big boss'. Would anyone in my position make a move, or is it too dodgy? I am also moving to another department in February so won't see him as often.