Do people prefer the certainty of misery over the misery of uncertainty?

My girlfriend and I were not doing well around Christmas, and I was convinced we were not going to be an item very long as she was "not happy with me". It was during that time that I received and accepted a job offer in another state that she said she would not relocate for. Of course now we're doing much better - something that I really did not foresee. I have moved out and am living near the job now, and she says she "doesn't want to break up, doesn't want to move here or quit her job, and wants to see me all the time". So uming that is the case, that leaves me with only one option, and that is to abandon this job and move back - although she wants me to go to it and see if I like it. Am I an idiot for even worrying with her or am I too selfish for my own good? Or is it something else?