>>33343142 (OP)The best thing to do if your gf threatens to break up with you, is call her bluff. 9/10 times it's an empty threat and she will start crying and apologizing. Stick to your guns for a day or two then come back and renegotiate the terms of your relationship.
That said, you should just get a job - any job - in the meantime. Get something part-time at the grocery store or some shit while you keep looking for what you actually want. Your gf's demands are entirely reasonable, no woman wants a deadbeat.
That also said, I managed to live at my ex's for 5 years with no job, just playing vidya most of the day. The way I did this was by giving her attention when she got home, supporting and loving her and fucking her well. Driving her around (in her car) etc. and we only drifted apart when I stopped giving her so much attention. So maybe you haven't been a very good boyfriend if she is threatening to dump you. I doubt the lack of a job is the biggest issue in the relationship, but it's definitely important.