Complex sentence: Ava grew increasingly distant from her husband and ultimately took their child and left in the middle of the night--right before the final surgery was to be performed to make her vagina deep enough to pass as biologically natural.
Split into simpler sentences: Ava grew increasingly distant from her husband and ultimately took their child and left in the middle of the night. Sadly, she left right before the final surgery was to be performed to make her vagina deep enough to pass as biologically natural.