Why doesn't he say "I'm interested"?

hello, everyone. why doesn’t a man tell a girl he is interested? why, why, why? we work together, this man praised me for my lovely dress in meeting break “in public”, and asked me about my favorite color, whether I cook…etc. everytime when he was talking, things like I was the only one he was talking to, because he only looks at me but I was shy to Starred at him!! when he gave us Xmas gift and card, I was the only one he told me “hey, only you I dont know what to say in this greeting card.” then everyone laughed but I thought that was the way he wanted to get my further attention and/or image on him. right?

things has been more than 5 months, why doesn’t he just tell me he likes me? I dont want to make the first move because I’m not sure whether he is single because there is rumor about his marriage, divorced or seperate or not, I think it’s better he tells first that I would get good opportunity and situation to clarify everything. why I’m afraid to tell first? because he is our BOSS, the general manager, and I’m just the supervisor that there are many managers, story makers, in this company that I’m afraid to make problems..

would anyone tell me how to make him say “could we date?” or something like that!! just provide some suggestion please! because I’m planning to leave this company because of my lousy superioir. think love is in the air, I dont want it gone right after my resignition.

does anyone understand my english? hahahaha! ^_^