What is the meaning of I'm still confused with the verb Linger

Definition of I'm still confused with the verb "Linger" like in the song "Linger" sung by the Cranberries. What does she mean when she says "Do I have to let it Linger?"
HiNative is a global Q&A platform where you can ask people from all over the world questions about language and culture. We support over 110 languages.

When God Hasn't Given You the Desires of Your Heart

My Three Words 2023: Linger, Declutter, Reboot – Daryl Hunter

Let it linger' meme: Where does it come from?

Why Do I Feel High When I'm Not: 8 Possible Causes

Malinger (verb) - Mammoth Memory - remember meaning

Kostaniet linger

What is the meaning of I'm still confused with the verb Linger

Dealing With Depression After a Breakup

Let it linger' meme: Where does it come from?

Stairway To Heaven by Led Zeppelin - Songfacts

I Walk Through the Valley of the Shadow of Death