Whew, glad to see you on the boards. I understand the turmoil that you are going through. Was out here wondering how you are doing, though.
Working with your W has been a continutal source of frustration for you so might be a good thing to find employment elsewhere. I hope that you will be able to find a position that will allow you to use your talents and skills.
I know how hard it is when your emotions are running high but try not to make decisions in haste. Walk around the block, go have a smoke,(if you do) but take some time to think before you make any other decisions. Sometimes time will lead us to wiser choices.
Why are you thinking that she is falling for someone else? Is this just one of her tests of you? Is she playing games again? Remember that a firefighter is not every woman's fantasy, so don't fall for that trap to burst your ego. Fantasies are just that, fantasies. Most of us would rather have a real live honest guy instead of a fantasy to relate to so try to stop putting yourself down.