Complex sentence: Her husband was very fond of their daughter, so they did share some of the family life Lovisa longed for, though she was worried by his treatment of their daughter "as a son", which allowed her a very "unrestrained" childhood.
Split into simpler sentences: Her husband was very fond of their daughter, so they did share some of the family life Lovisa longed for. However, she was worried by his treatment of their daughter "as a son", which allowed her a very "unrestrained" childhood.