
I do really like this manga and I also like the characters but it's kind of weird that even tho the seme loves the uke sooo much he won't even consider bottoming. I mean like if the person he loves wishes to top wouldn't you at least try?

It's understandable. I think, thought, it's less of a top bottom thing - since the seme told ashitaka himself he could "bottom me if you want" if he won't like how things go (also it was told somewhere they are switch but since I don't remember and we didn't saw them lets ignore that).
I think it's more a deal of fixing what he already did. If he let Ashitaka just top him, it won't mean as much. To Ashitaka sex became something that is not very meaningful, and his inability to bottom resembles his inability to open up and be vulnerable. I think the seme gets it.
OMG this is what I was searching for.
Like in every of those empress vs concubine mangas/manhwas/manhuas I was just like just be bff's and everything would be just fine