Why is my outlook account name automatically remade and called DragonfruitHazelnuts

I have a strange trouble with outlook.com: I registered DragonfruitHazelnuts here on Similarworlds, NOT google or microsoft... But for some reason my outlook account is now called DragonfruitHazelnuts. WTF. Did I edit it while drunk or how is this possible. How do I change this? DragonfruitHazelnuts is a cute name but I don't want my outlook account to be called anything else but my professional title aka my name! Can someone help me edit the name on my outlook account. I dont understand what the fudge happened to cause this. It used to be called just my name.