Until she got moved to the 12-18m room, I visited DD every day at lunchtime.
Now, she naps from 11:30-1:30 (or she's supposed to) and I can visit around 2 during afternoon snack. She gets upset when I leave, though, and cries anywhere from 30 second to a couple of minutes after I leave. I know this because I asked the director who told me to go look in the window one day last week, and, sure enough, although she was bawling when I walked out, she was playing nicely about a minute later.
Would you stop visiting? I pick her up around 5:30, and I don't want to unnecessarily upset her, but I miss her terribly during the day.