If you're asking for the raw, here's the link:
https://tkor.rest/황후궁-체대생
Yeah, i still find it so hard to believe that Lynn is two faced. The thing about two faced characters is that when they're just thinking things to theirselves, so without anyone around, their true colors start showing. In this case, even when Lynn is by herself, without anyone to watch her and hear her thoughts, she actively fangirls over the Empress. It would be so weird and illogical if she turns out to be two faced: like why would she quietly show happiness and genuine care for the empress then?
I don't think Lyn is a two-faced person coz as what I saw in the raws, it seems her (Lady Lyn) maid insulted the empress and she got angry? that's why her face in chap 30 is kinda scary.. And it also shows on the other chaps that the maid was somehow working under someone who's plotting against the empress and I think she was ordered to screw up the harem to confuse things (coz in some chaps, she spoke to a man and I think she reported about what happened in the harem)
This is just my opinion about the said spoilers as I've read the raws hehe