Is it selfish to want to be alone?

Not at all!

It’s normal to need time to recharge by being alone. Some ppl need to recharge their social battery after hanging out with their “me time.” Everyone needs chilling time but introverted ppl need more and that’s okay! It’s not selfish to need alone time but without an explanation to others for a long time they may get the wrong idea so plz communicate ppl can’t read your mind, if it’s about you or it’s about them.

Nope. Alone time is good time. Everyone needs to take time for themselves.

No it's not selfish. You're taking care of yourself when you have alone time.