Does anyone share this obsession with certain colour?

Hey Guys, so this is kind of a weird post but I am dating a guy on and off for almost a year and he has a weird obsession with the colour blue. Its almost sickening. For context I'm 24 and he's 25. Everything he owns is blue. Watch, slippers, shoes, laptop, towel, 99% of his wardrobe, book covers, bedsheets, pillows, the interior of his room, razor , trimmers. EVERYTHING. Even the soap he uses to the perfume he wears needs to be blue. His wardrobe is 99% blue with other colours being black and green. And overall he's nice but this weird obsession has gotten irritating now. I like wearing almost every colour but bcs of him, i have started hating blue.

Even when I advice him to try on something else, it sits on deaf ears. I keep telling him (and secretly hoping) that someday he wakes up and suddenly hates the existence of this colour :'(

Is this strange? And also if anyone of you can give me any advice, it would be helpful.