You guys have contributed equals parts so far create the company and split it evenly. Don't be greedy, focus on making the pie bigger not getting a bigger piece of the pie. Don't complain because she might benefit from your work along with you.

As a co founder, she should have a commitment to the project and will probably contribute in whatever capacity she can for the time being. If she is as valuable as you claim, she is worth keeping around and will probably return as soon as she can. If you need help with your project, get some.