Christianism preaches so much compassion, yet also teaches Christians not to have compassion even for themselves, for what is the natural reactions of impulses of the mind and body. Feeling lust towards someone you’re attracted to is natural. Feeling anger towards someone who harms you is natural. What matters is whether your actions you choose to commit after having those thoughts may bring harm to yourself or others, but when you think you have a security guard monitoring your thoughts every second of your life, it’s much harder to reach that conclusion. Like another user said down here, this guy would have a much healthier life if he just had a wank when he came back home.