Working two jobs and lost my gf

I briefly tried to work two full-time salaried jobs at the same time (I'm remote). It was an attempt to save my annual bonus from the one I intended to leave while not delaying my start at the new one. This is two very large corporations btw. Not some small company that's scraping by. If I said the names you'd definitely know one of them and maybe both. The type of companies that would lay off 5000 workers to boost their stock price by $0.10.

In hindsight I should've just declined the new job offer but in today's economy I didn't even consider that option. I did manage to briefly (9 days overlap) work both jobs but only because it was really slow at the old job. The stress of it ended up causing me to quit the new job and stick with the old one but that's not really why I'm posting this...

The big problem is with my (now) ex-girlfriend. She lost it over this. Told me it was unethical and it changed her opinion of me. That by not working 16 hour days I was scamming both companies. She went from "I need to think about this" on a Sunday, to "we need to take a break" on Monday to "I'm breaking up with you" on Wednesday.

Historically I've made as many, or more, mistakes than my partner in a relationship and am more than willing to accept my role in their failure. This time however I can honestly say that this was the only (even remotely) wrong thing I did. To me this is just so crazy and seems like an excuse to move on from me. Things had been off for a couple of weeks leading up to this so I think she wanted to end it. It feels like she needed me to be the villain in the breakup so she latched on the the first small thing I did wrong.

So, am I the bad apple? Is what I did really that awful?