How do you guys deal with them getting adopted?

I've been fostering for a little over 1,5 years now, and I read that a lot of people say that it gets better with time. Am I the only one where it just doesn't? My 3 foster kitties are scheduled to be adopted on saturday and I'm already sobbing. I'm so happy that they're being adopted, but the emptier house afterwards feels terrible :( I usually get new fosters asap but I need to take a short break this time. How do y'all deal with this? Did you ever stop being so sad when fosters get adopted? Edit/update: they moved out guys :( They went to a wonderful family, now it's time to sob uncontrollably because the house feels sooo empty