Tell me what happened

After a while, they drifted apart, and Lina said, 'Gen, wait-', but Gen pushed her off and made her lie down on the bed, and then he lay down on top of her and started kissing her again.

Lina then thought, 'Why is this happening?! Gen is clearly out of his mind, but I didn't do anything to him. I just relieved the pressure on his body and mind.'

Lina then began to remember what her mother had told her when she was teaching her this technique, and then thought, 'She had told me to only use this technique on someone very important to me. Does that have something to do with what's happening now?'

Lina then tried to get free of Gen again, but she seemed to be running out of strength, and then thought, 'Damn! It looks like this technique didn't just affect Gen. I can't use my essences either, plus I'm extremely exhausted ... looks like I'll have to wait for the effect to wear off, and Gen to come to his senses.'

...