[That's quite a story, but first things first:] Adrien, I will not hear you talking bad about yourself.

[Despite having never been a mother, Celestia has an extraordinary mother voice, firm and gentle all at once. Negative thoughts will not help.]

I do not think you realize this, but -- to become a god here in the Far Shore from a shinki, you may very well have died. If Marinette and Snake actually saw that, they went through a great deal of pain before you returned. Most likely they are coming to terms with that, first and foremost.