Are the panels not in order or em I going crazy

They are not. Checked Tea Spirits Scans's chapters on mangadex and they are completed and in order there

I looked the name up on mangadex and it said it didn’t exist

https://mangadex.org/title/968ac852-374c-4b0f-bfbc-eda085f69f83/romantic-ga-niawanai

This is the link. Maybe it has restrictions to finding it since it's classified as mature content