Complex sentence: He headbutts Sean and when Shirley says she wants to rebuild their relationship, Deano responds with fury, pinning her against a wall, ripping off her jewellery and shouting in her face, showing her his prison injuries.
Split into simpler sentences: He headbutts Sean and when Shirley says she wants to rebuild their relationship, Deano responds angrily. He attacks her before ripping off her jewellery and shouting in her face, showing her his prison injuries.