Fiancé left me

My fiancé of 3 years told me today while I was working that he doesn’t want to be with me. That he’s been unhappy for a while and I’m not the same person that he got into a relationship with. But I’m the only person who works in a house of 5 (one being our daughter who is one) and supporting everyone. And he told me that I’m the reason he’s not doing good in life because I wouldn’t leave my job when he got a job offer (he’s short tempered and I had a feeling he would leave it before finding another). So I got a long thing about me being the common denominator of why his life sucks.