Hi Kyh, I agree with HaWho that it'd be good to consult a lawyer. Especially if you suspect that she may want to go work with him at some point. It's very important that you know what your rights are. Many of my friends with shared costudy have kids every 2 weeks during summer holidays. One of them one month her, one month the father. I'm not sure I'd survive that but she said she got used to it & it's easier travel arrangement-wise. Their kids are still small.
Be strong & try to negotiate what's best for you (well, best under the circumstances). I would do everything in writing as they are very unstable in their thinking & decision making, it seems.
