You could look on Amazon Prime Video. They often have a wide range of shows and novelas. Another possibility is to check with your cable provider's on-demand section. Sometimes they offer it there.
One common theme is social class differences. For example, in 'Romeo and Juliet', the Montagues and the Capulets' feud, which is related to their social standings, makes their love seem impossible at first. Another theme could be cultural or religious differences. If a novel features a love story between two people from different religions that have strict rules against inter - faith relationships, it creates an impossible love situation. Also, fate often plays a role. Sometimes the stars seem to be against the lovers, like in some tragic love stories where external events keep pulling the lovers apart no matter how much they love each other.
Jane Austen. Her novels often deal with love that seems impossible due to social norms and class differences. For example, in 'Pride and Prejudice', Elizabeth Bennet and Mr. Darcy initially seem an unlikely pair because of their pride and prejudice towards each other, which are influenced by their social positions. Another is Emily Brontë. 'Wuthering Heights' is a prime example of an impossible love story, with Heathcliff and Catherine's love being thwarted by class differences, family rivalries and their own complex personalities.
I'm not sure specifically what 'Cap deage' means. It could be a very specific term, a misspelling, or something relatively unknown. It might be a proper name, a local term in a certain area or a very niche concept.