Thank you, that's it! No wonder I didn't find it by looking through tags. I'm not sure what else could be applied to it, though. (I'd still say that's not moe art, but it is more standard manga style than I remembered.) I feel like there should be a new tag for manga which are poignant but which don't warrant the "depressing as fuck" tag.

I feel like there could definitly be a tag for manga that cover a very large timespan and sorta show the summary of someones life, like "Born this way" and "I could just tell".

@DridyEXE
This?

Thats the one, thx alot

Sry about the double-post, internet is kinda shit rn

Need help finding a one-shot i read some time ago. 2 friends (Lets call them girl A and girl B) in a school setting get together and a guy asks girl A out. She tells him that she cant go out with him since shes dating girl B but girl B intervenes, tells the guy that it was a joke and then girl A that she should lie about her relationship since she doesnt want girl A to get hurt by rumour/bullying. So when their classmates then ask if they were serious and are actually dating, girl A lies about their relationship. But girl B sees that girl A isnt happy telling the lie that she made her tell and kisses her in front of the whole class, declaring their relationship.
It had a pretty cute and simple (or rather not very detailed) artstyle, if i remember correctly.