I think you are just a little confused about your sexuality. It happens. Nothing is wrong with you Birdy. You may get turned on by the women wishing that was you? As for the guy at work, do you really want to ruin your marriage?
Every relationship - especially a long term one - has its ups and downs - peaks and valleys Your really have to communicate with each other to get through the valleys Have you thought about seeing a counselor?
There is no reason to feel that something is wrong with you. Just because you find certain types of adult movies more interesting and arousing then others does not mean you are weird. Human sexuality is a broad spectrum going from black to many shades of gray to white. In other words there is no one or the other. You can very well , like a lot of people, find yourself in the gray area. That is not a bad thing at all. If you feel that you may be bisexual , it is not an issue unless you feel or make it one. You state that women turn you on. But there are also men that get you excited. And there is nothing wrong with that. You just need to figure out what you like and want to experience , And personally I do not feel that you need to feel guilty about it. You need to be your own person.
I flirt all the time. It is good for the soul. lol Banter is really good fun. Why are you not flirting with the guys at the virtual beach party thread? lol Virtual Beach party thread