Sage - it seems like trust is affecting your decision. Do you trust that the nesting arrangement is in the best interests of your children and your H will act reliably and responsibly as their father? Can that be separate to you trusting him, or not, in the fidelity sense? (I know they are not separate - a good father does not cheat on the mother of his children - but I ask this as the trust issue seems important to you and it might help you get clarity on it.