Seperation with my husband due to erectile dysfunctional problem

Three years of love, we had a sex,I will not say am satisfied with it,am not sure about the problem at that time and he consulted doctor ad well,I dnt know about the problem exactly. After few days we got clashes, I have decided not marry him,he blackmailed and threaten for sex chats and romance matters. After long discussion with commitments, we married.Now it's clear he is having erectile dysfunctional problem. I told so many times to consult doctor.he neglected on that,one day he went alone and came.later my mom told you need to come with us & We consulted doctor as well. After that he has taken 3 tablets,even though improvement is not there,again he thought to consult doctor.In between we got so many clashes,his mom came and taken his son and he left after 3days he Messages me fertility related tests are done I dnt have any problem like that,I dnt want to live with him. He is putting negative allegations now that,1. She knows before marriage about the problem 2. Now I dnt have problem am medically proved now 3.for encouragement I messaged him that improvement is there. 4.linking my pcos problem also that she only I have pcos problem she can't pregnant also 5. he is totally black mailing with old messages Am having problem in other aspects also, he kept loans he didn't inform me also, before marriage he told I will not ask your salary I will 50k per month for you at any cost,like this so many commitments, 6.he beats me,he used vulgar language, domestic violence is there Finally at any cost I need divorce . could you please suggest me Finally at