Complex sentence: That Boxing Day, Grant springs a surprise wedding on Sharon but she is initially unimpressed with this romantic gesture, Sharon marries Grant following persuasion from her best friend, Michelle Fowler (Susan Tully).
Split into simpler sentences: That Boxing Day, Grant springs a surprise wedding on Sharon. Although she is initially unimpressed with his romantic gesture, Sharon marries Grant following persuasion from her best friend, Michelle Fowler (Susan Tully).