Someone stole my ETH from my METAMASK and I want to know how. Help!

Hello. So a bit of a backstory, yesterday I decided to withdraw my ETH from my wallet and when I logged in for the first time in 10 days I saw that all my ETH was gone. The transactions happened 1 day ago and it isnt shown in my "activity". It only shows up on "etherscan" and I know for sure I didnt get hacked/clicked on any suspicious links/give anyone my password or key/connected my wallet to any weird site,… I dont remember doing anything wrong. What I find strange is also that they only took my ETH, they didnt take my NFTs. The money is still on their account and they are still going around scamming people. I am heartbroken, I got lucky with 1 NFT that I manage to sold so I could afford to attend college l but how am I going to pay for it now. So please, I know my money is gone but could someone that knows a bit more about this stuff look into it on how it happened. I swear I did not give anyone my password/key and I did a full scan of my PC that showed my PC is not infected (did a clean install just a month ago).

My address: 0x8Df5768cF9bb3A850ee3E62dF2D9301265909E95
Scammers address: 0x9fae3505d54499824f6F52d4cd01013a4151806ATransaction hash: 0xb89364dae7e744b5711bb56c3201e48f6a0ccde9925bf4864ae129acb666f3a0