Yes, that's possible! It is possible to set your charging point as Plug & Charge, where everyone can simply plug in the car and it will be charged. It is also possible to lock and unlock your charging device with a charging card from you and your partner, so that you are both the only people who can charge on your charging device.
There is also an option to implement installment billing. This ensures that both parties receive compensation for the electricity they have used, ensuring that costs are shared fairly.