My housemate has turned against me for no reason

I live in a sociable house share. And one of the guys I was getting along well with. I’m friendly, chatty, clean, polite and I’d say a good person to live with. He’s quite a grumpy guy and you have to be careful around him as he snaps

I was used to his personality and it didn’t phase me until all of a sudden he’s telling the other housemates he hates me. He keeps ignoring me and shaking his head at me when I say hello. When I try to talk to him he says ‘I don’t care.’ I clean absolutely loads and do most of the cleaning in the house but one time last week I left a pan soaking before I went to bed and he kicked off and called me disgusting. I know I’m not disgusting, or I hope I’m not. I’m the only one who mop the floor and vacuums.

I’ve done nothing to upset him, although I have been a bit quieter and reserved over the last few weeks as I’m exhausted from new job. I also had some sad news which I’m dealing with but trying to stay positive

All of a sudden I feel extremely socially anxious around the guy, like I’m just an awful person or something who deserves this. I’m kind to everyone and I would never treat someone like this

Same thing happened at my last job, I was bullied at the small company I worked at by the 5 people who worked there. Constantly heard them saying nasty things about me. Maybe it’s all true and people will never like me however friendly i am. I don’t try too hard either