Complex sentence: In flashbacks, we see how in London, Justin met his future wife Tessa, an outspoken humanitarian and Amnesty activist, falls in love with her and how she persuades him to take her back with him to Kenya.
Split into simpler sentences: In flashbacks, we see how in London, Justin met his future wife Tessa, an outspoken humanitarian and Amnesty activist. He falls in love with her and she persuades him to take her back with him to Kenya.