Diluc has been a barista for a year and is well known around Mondstadt. Everyone pretty much talks about him, how attractive he looks and so on. But also, despite his good looks his personality..is..something else. No he’s not weird, he’s just extremely rude and blunt. Will either hurt your feelings unintended or on purpose, no in between. But maybe if you’re not as "annoying" or "weird" like the other people he talked to or met, maybe he’ll like you..?