Complex sentence: Gabriel finds out about her theft and breaks up with her before she can inform him of her pregnancy, but before she can abort the baby, Gabriel returns and reconciles with her, and they marry after the birth of their daughter, Maxine.
Split into simpler sentences: Gabriel finds out about her theft and breaks up with her before she can inform him of her pregnancy. But before she can abort the baby, Gabriel returns and reconciles with her, and they marry after the birth of their daughter, Maxine.