Complex sentence: Most recently, after sleeping with Jack, he discovered that she was injecting herself with Testosterone, Zara shocked by this got very angry and sent him away, before he could ask, as he is currently unaware of her current condition.
Split into simpler sentences: Most recently, after sleeping with Jack, he discovered that she was injecting herself with testosterone. Zara, shocked by this, got very angry and sent him away, before he could ask, as he is currently unaware of her current condition.