People shouldn't be saying things like "fag" at work, so if you are gay and that offends you then you should do something about it. I wasn't there to witness the "big scene" you refer to, so I don't know if it's necessarily the most appropriate response lol, but If it were me, i'd possibly be inclined to make a scene as well...Sounds like my work experience though..I find myself feeling like people are talking about me or are mad at me or just don't like me quite often. I think sometimes it might just be my imagination, but it is often hard to tell 
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"There are things known, and there are things unknown, and in between are the doors of perception."
--Aldous Huxley