I get what you're saying about staying friends--but I also think that my girls would find it confusing for their dad to hang around here and then leave to sleep elsewhere. They ask a lot of questions about everything and they will certainly grill us about why daddy can't stay here, etc. Also, I think it would only feed their hopes that we'd get back together--which is what all kids want.
I can see possibly being more flexible about H's being in our house in the future, but I think we will need a cooling-off period to establish the separation--otherwise why bother separating?
The whole thing seems so not worth it!
Me/X-H: 47/48 T 19 yrs M 16 years D14 D10 ILYBINILWY: 10/07 H moved out 6/08