As-salamu alaykum brother,
I am sorry to hear of her parents interference in your plans for marriage, it is un-Islamic. A woman in Islam is free to chose whom they want to marry as long as the intended meets the Islamic requirements. Parents are not allowed to force their children to marry one they do not want to marry. While I do not know your ages, I would encourage you to seek out the advice of a trusted Imam on this issue of marriage. Perhaps a supportive Imam can talk to her parents. If not, you are still both adults and can chose to marry if you wish. It wold be difficult given her parents are set on choosing her marriage partner however perhaps in time they may accept it. I would advice you dear brother to insha’Allah seek out the guidance of an Islamic scholar to perhaps support you both in trying to get married.
As far as if Allah SWT will answer your prayer to Him requesting that He bring you together in heaven, I cannot answer that definitely as I am not an Islamic scholar, and really only Allah knows. However I do know He brought you both together to meet in this life and what actions you both take to secure a righteous marriage in this life is the issue right now. Please do speak with an Imam brother. We wish you both the best, please let us know how your doing.