What?? Am i wrong?.

Okay.. So today i was doin laundry and was foldin clothes and i was noticing my bf was still useing 2XL tanks and boxers.. He was in shape when we met last year but throughout the year he has gained.. Ive been wantin to help him lose weight.. And i have!.. He cries about how fat he is but i tell him not to and to motivate himself.. I wake up and make him fresh juice every morning make him healthy lunch and everythin.. Help him stretch.. I tell him he looks good in his outfits and he always tells me to go fuck myself and that im lieing.. I never once made fun of him.. Cause thats fucked up but he argues with me tells me im the reason hes fat but im helpin him lose .. He goes to the gym and all but i havent seen a change !.. So i told him i feel like hes not tryin hard enough!.. And he flipped Am i wrong.. Its been 3 months and he still same sizee.. Im goin out my way helpin u lose makin u eat right bt when hes with friends he drinks and eats wings and vapes and its like wtf am i wrong for argueing?!.. Im so stressed its like idn anymore!.. Any advice! Wth do i do ?