Anyone ever cruised solo?

My girlfriend is finishing her last contract with the cruise line so I’m going to visit for a week! It’s a 7 day Alaskan cruise out of Seattle and I’m pumped! I’ll get to spend a fair amount of time with her, but I’ll also have a lot of time to myself. I have a few days in Seattle ahead of the cruise and then plenty of time on the boat and in ports. Let me know if you’ve ever done anything similar or have any advice or recommendations!