Complex sentence: Leon Small (Sam Attwater) takes Lucy's virginity in 2010, leaving her pregnant; unaware of this, Leon dumps Lucy for Zsa Zsa Carter (Emer Kenny).
Split into simpler sentences: Leon Small (Sam Attwater) takes Lucy's virginity in 2010. Unbeknownst to Leon, Lucy has fell pregnant with his baby and Leon dumps Lucy for Zsa Zsa Carter (Emer Kenny).