Complex sentence: Kirsty later suffers Braxton Hicks contractions in the cafe and panics when Tyrone does not answer his phone as he is fixing Fiz Brown's (Jennie McAlpine) boiler, making her jealous so they argue again.
Split into simpler sentences: Kirsty later suffers Braxton Hicks contractions in the cafe and panics when she can't get hold of Tyrone. When she learns that he was fixing Fiz Brown's (Jennie McAlpine) boiler, she gets jealous and they argue again.