Complex sentence: When Betty goes to get her contract release form from Daniel, he burns it in front of her, but ends up burning himself and he tells her that he is angry that she is going and doesn't want to release her from her contract.
Split into simpler sentences: When Betty goes to get her contract release form from Daniel, he burns it in front of her, but ends up burning himself. He tells her that he is angry that she is going and doesn't want to release her from her contract.