you know you have to take stock a bit with your first reason, your friend went on to have a baby yes? is there a time limit on how long she has to remain tightlipped about being excited or sharing a story about her child? maybe you are being over sensitive, for people who have never been through an abortion they probably assume that you have moved on a little.
bearing in mind abortion was YOUR choice to begin with. I think sara is right in the sense that you may need some councelling, whatever job you get in the future I hope you dont tell everyone you have had an abortion then accuse them of hurting you if they talk about their kids.
clean slate, start again, although it is foolhardy to leave a secure job during a recession I wish you well in finding another job that makes you feel happier.