You ARE being manipulated. Your best course of action (in my opinion) is to stay where you are in a job you are happy with. In today's volitale economy, your best security is a good job with a future. That will contribute more towards your being able to take care of yourself and your family than anything else you might do.
Although Skoolie and LissaC will jump all over me for saying this; I still believe people who love each other have to make periodic sacrifices to accomplish what is best for all. It is traditional for a woman to go where her man goes. As you said, you can barely get along even when you're together, so what is the point of being together in a situation where job stresses might make your relationship even worse.
Your girlfriend is being a child and is attempting to manipulate your behavior because of your feelings for your child. Stay where you are, keep the job you like and tell her she has to move.





