ひめちゃんは重い女 Hime-chan wa Omoi Onna
Creator: 花束葬式 Hanataba Soushiki
Publisher: Houbunsha
Serialization: Nov 2020 - Jul 2022, Comic Fuz (web manga platform)
Books: 3 volumes
Origin: Pixiv
Genres: romance, conversation, comedy, GL
The protagonist is Himeno, a university student who identifies as a lesbian. She has a girlfriend called Yoru, who Hime worships as her perfect girlfriend. Hime is "heavy" in the sense that she puts a lot of emotional weight on her romantic needs and is quick to get anxious and despondent when they aren't met. Her best friend is a gay man called Hajime who is similar, although he has a gloomier outlook (Hajime also has his own 2 volume companion series about his love life: Yotsuya-kun to Hajime-kun). Other characters are Hime's younger brother, one of Hime's female friends and that girl's boyfriend, a girl at Hime's part time job who loves a fictional boy from an otome game, and a man who works with Yoru at her part time job.
The series is mostly conversations between the cast of characters about their differing romantic desires and attitudes. On first impressions it could have been a series making jokes about how demanding and anxious Hime is, but it's warmer and more interesting than that. Hime is smart and self-aware enough to understand that it's not really fair to expect a lover to live up to her desires. It's clear in her friendships that she's understanding and considerate rather than self-centered.
Spoilers
With this series being primarily daily life, there's essentially a single major plot development: the series ends with an arc about Yoru realizing that her relationship with Hime is based on Yoru having been raised to constantly strive to keep other people happy. Hearing about asexuality makes her reflect that she doesn't have romantic feelings for Hime and her efforts to meet Hime's desires are exhausting her. So the story ends with Yoru breaking up with Hime. Hime adored Yoru, but her perfection was too good to be true. If anything Yoru turns out to be the most troubled, least happy person in the series.It's a relatively bold choice to end the series like that, with its protagonist heartbroken, and I respect what it did with this. For one thing the characterization of Hime over the course of the series is such that while it was clear the relationship was enormously important to her, it's completely in keeping that she would wish for Yoru to become happy without her, and that was the note the last chapter ended on.