Complex sentence: After much flirtation between them, Hari thought he'd finally seduced her when she invited him to spend a quiet afternoon with her but soon realised that she was trying to make her husband, Grayson Sinclair jealous.
Split into simpler sentences: After much flirtation between the pair, Hari thought he'd finally seduced her when she invited him to spend a quiet afternoon with her. It transpired she'd merely been trying to make her husband, Grayson Sinclair jealous.