Wait, wait, wait ... he put her 'ring' on his 'finger' so he could use her thing as a conduit for his thing and shot fire out of himself to 'win' but now he's going through labor pains ... LOL. I would ALMOST think that someone got preggers but this is NOT 'THAT' kind of story.
Welp, she's furious. And correct me if I'm wrong, that should be a past life speaking through her right now, correct? If so, oh boy, the MC done the stupid that her past life just came to the present to unleash the slapping of the century.