Divorce for erectile function & blackmail me before marriage with phot

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