Date nights should not wait for nursing to be over. Even if your dates only last an hour, that is still enough time to get away for a fast meal or a short walk and have time to be together without the kids. And you should expect and plan to handle her anxiety. Take a cell phone and give your sitter the speed dial instructions. And instruct sitter that any call had better be important. Do not turn around after going 2 blocks when your W remembers another bit of advice for the sitter, if the advice is really that important your W can call using the cell phone, but keep it short.