Idk what's wrong

I love my bf i do but for the past few weeks idk what's wrong but i dont feel as attracted to him hes lost so much weight he practically bones, he dresses like a slob, and ig hes hasnt been making enough hours so he's always broke so hasn't got a haircut and doesnt shave himself, during sex if i look at him i get turned off kind off like finish(say it in my head) not cause he's ugly it something behind it but idk what, i lost my sex drive. Although we have sex (with my eyes closed)i havent kissed him in a while, when he hold me at night I don't feel good like I usally do I remove his hand. Ps the only way we have sex or talk is if I smoke with him first. We been together 2 years we been arguing alot lately but other than that idk I thought I could be pregnant my friend told me she hated her childs father while pregnant but i took a test it was negative and my periods due today. I just wanna add on ive talk to him bout it he said well fix it but as a man idt he understand s my feelings and the seriousness which is why i thought I could advice here