cant leave my bf

21 F in a relationship for an year plus, i love my bf but i can tell the relationship is turning toxic. we were in love and planned our whole life. but now i am scared to leave him cause we had been intimate in the relationship and scared it will affect my future relationships aswell. i deeply love but uts getting atti nai toxic like he taunts me , maile kei feelings hsare gareni gan gan gareko neu khojeko sanu sanu kura ma micromanage garna khojcha even when i am out with my girlfriend its getting too much for me but this fear of things affecting my future scares me too muc. i am just curious do people care about past and these stuffs? ( ik reddit ho so ill get hate and unneccesary comments here but if u can pkease try not to im in a really bad place)