Not a big a deal, thats now much common in professional world. I see this as an intern working under you, demanding for some professional favor from you indirectly.
And for that she is giving out hints, and want you to pick them up and bed her after that she has a strong base for you to provide uneven favours to her. I dont doubt her character, few women are that and you cant call them a whore. They get laid fo success, I witness such women daily, now its not hard for me to make out when I see a hot chick with old man late at night or a pub. So, next thing you are confused with is whether to fuck her or not. You are a married man, much mature, shoulnt be confused with this one. If you are the one who cares for his wife and call yourself a ONE WOMEN MAN you must ignore her erotic gestures and this should make her understand slowly you are not interested, and if are one the who thinks LIFE COMES ONCE then go ahead and ask her for coffee outside, this should set a track for you to her HOLE. And thats too funny, you think fucking her for a night will get this done. You are getting nuts, think like a gentleman, right now you are assuming like a teenage kid fantacing after reading a erotic story. Its your call. But a simple but important thing you must remember pleasures always carries a risk, and that risk grows 100 times for a married man. Best of luck