Do you do anything differently when your significant other is out of town for more than a few days?

Is it hard to get to sleep? Do you catch yourself about to talk to them when they aren’t there? Do you plan to do things alone that are different or special or do you keep your routine as normal as possible? Do you feel a bit overwhelmed with missing them or does everything feel normal or does it only hit you at certain times of day? Is it easier if you’re the one out of town and your SO is home? For those of you who have been in a relationship for a long time, is this significantly different for you now than it was when you were a younger couple or newer couple?

I know that’s a whole lot of questions, but it’s really a lot of the same tangle of an idea so feel free to answer in whole or in part. Thanks.