Does anyone feel like they are being mean when you need alone time? How can I show they are still important to me?

Recently I got back from a huge trip with all kinds of stimulation. And everytime I come outside I’m swarmed by my apartment neighbors asking me for help and to tell them about my trip.

I feel like an A Hole because I’m still cooling down from the trip. I could tell when I said no not today that their face fell. They were disappointed in my answer.

I guess my fear is can I show my neighbors I do love and appreciate them while also being an introvert? I live in an apartment complex upstairs and my neighbor below me will call and message me a lot if she can tell I’m up here. She definitely has a bit of a crush, but she’s old enough to be my mother. She really wants us to go to the pool together for example and I’m not sure I can do that(they are physically disabled and need help getting in the pool).

How would you guys deal with it? I feel like such an asshole saying no as if I hate them or something. But they always ask on my days where I’m feeling extra overwhelmed. Everyone I know in my building is extrovert.