I wouldn't say they ever "didn't accept" him. He was never unwelcome in their home and they paid for the wedding.
They just tried to convince me that he wouldn't be a good husband.
At the time he had only worked part time jobs and they thought he had a poor work ethic, but I knew him better. He was very responsible and he always kept his word. They thought I was making excuses for him because I was in love.
I knew in my heart that if he married me he would take care of me, and he did. We've never been rich, but we always made ends meet.
And once they saw how hard he worked after we were married, they did admit that I was right about him.