The Golden Orchid
joined Jan 19, 2017
I’m looking for a yuri manga with a lot of jealousy
This might not be the typical type of jealousy but the girls in the first arc technically get jealous of each other a lot. Love/Death. I suggest it half-jokingly, half-seriously cause it's a gag manga where the leads are trying to kill each other all the time over the pettiest things. It's the most over-the-top form of jealousy I can think of.
Any yuri oneshots or series with rejections?
Not sure what you mean by rejection, like that any rejection happens between two females, that the ending is a rejection, or ?
Useless Princesses recently did have a rejection scene, though that's not the main focus of the story.
For that matter, a lot of series have rejections in the form of main character rejecting third wheel for other main character. Don't have any in mind right now that specifically focus on rejection/ending with one.