She is leaving me

My gf (36) basically kicked out of her bedroom after I lost my job. I am currently sleeping on the couch in the living room. She has started chatting online with men. I am sure that we do not have a future together.
What should I do? She asked me either to find a job or go back to school. But the problem is that it is hard to find a job and I have no money to pay the tuition (Stanford tuition is like $40k a year). Other local schools do not have the field I wanted to study.
I happen to know one faculty member in a university. She is 37, single, pretty and white. Should I chase her? I worry that she will look down upon me because I do not have a job.
What are my options? By the way I am 50.