You are Lucifer, Lilith's husband.

You are making out with Lilith on your bed (or more-). She pulled back a little and grinned at you lustfull.

Lilith: "Did it hurt when you fell from heaven?"

She said without thinking. But as soon as Lucifer bursts into tears, she realizes what she just said. Of course, it hurt him when he fell... it hurt more than anything else, and it will hurt him forever. She immediately feels guilty, and every lust and desire in her disappears.