Originally Posted by triolove
We all want to be even.
I have an idea. Get yourself some closed-circuit video cameras (they are pretty inexpensive nowadays) and set one up in each room so you can keep track of what they're doing while you're at work. Then you'll have a clearer idea of what you need to do to keep up with her in terms of getting your half of the time alone with him. You will also need to do things with her so that neither of them is getting more than their fair share of time with you.
Then, and only then, can things be truly even and fair to everyone. Otherwise, just forget the whole thing.