[Advice Needed] My Husband Cursed My Two Daughters; They Are Still Single At 36 Years!!! Please Read This Story And Advise Me!

Please, help me solve this problem that has torn me apart and is threatening my happiness, my daughters and probably the future generations yet unborn.
I married my husband just like every other young woman and we both looked forward to a blissful future with our children. Contrary to the belief of some people that I would have problems bearing children, through God’s mercy, my three children came few years into our union.
A lot of people believed we would have to wait on the Lord for the blessing of the fruit of the womb as that was the tradition in my husband’s family, but God singled us out and we had our children without any hitch.
With these, our joy was complete and we never envisaged that these children would be a source of discord in our family now.
I am a trained nurse with a B.Sc in Nursing from Glasgow, Scotland and my husband is also a trained professional engineer. We both had good jobs until my husband lost his job and getting another good well paid job became difficult. We both decided that I should travel out of the country to practise and when I am stabilised, he would join me with the children.
As luck would have it, I secured a good job and no sooner had I got to England that my husband secured one too. We had it all, which was what we thought. I would have returned immediately, but since my being over there made it convenient for my family to visit on holidays and my children were not too young, I stayed on my job and sincerely my husband did a good job taking care of the children.
The summer my first daughter turned 18, it was my turn to visit home. When I arrived, I noticed a tensed atmosphere between my daughters and their father. I forgot to mention the fact that I am blessed with three children, two girls and a boy, the boy is the last.
Initially, I thought it was the adolescent – parent’s issue, so I ignored it. But when I noticed that apart from the tensed atmosphere, my first daughter sometimes would be outrightly rude to her father, I demanded to know what was going on. This became a matter of concern because, both of them were very close and my husband addresses her as Iya Mi (My mother) because of the uncanny resemblance she has with my mother-in-law, so I wondered what could have happened.
I tried several times to get my daughters to speak with me and tell me why they treated their father with such contempt, but all they had to say was always “talk to your husband.” On a fateful day, I had to call my husband’s attention to what I saw and asked him what was going on. He told me it was nothing he couldn’t handle and that I shouldn’t worry myself. He, however, told me that my eldest daughter was keeping bad company in school and she was trying to draw her younger sister into it.
Based on this, he decided to bench them, and placed embargo on outing and parties. He dropped them in school and made sure that whatever he was doing he created time to pick them from school. On days that he had to travel, he made plans to get them home. This, of course, did not go down well with them and he wasn’t ready to bend the rules.
I was happy because I knew it was something positive and because of their age, I knew this wouldn’t go down well with them. I then ignored their attitude until few days that I wanted to travel back to the UK. I called my eldest daughter first to speak with her. When I raised my observations and my husband’s response with her, her reply threw me off balance.
My daughter told me that daddy did not want her sister and herself to go out because he was having séx with both of them. I thought I didn’t hear her well. I asked her to repeat what she said, she repeated herself again and asked me to confirm from her sister.
I summoned my younger daughter immediately and she said the same thing. My life crashed that very moment and I asked if they could repeat what they told me before their father. They said they would. When he came back from the office, I sought an audience with and told him what the girls said. He said I was joking and said I should call the girls. I did and they repeated what