Writing Dilemma

OK, so WHAT do you do when you have a sort of weak story that you’ve been working on for many years, and you finally realize that the sequel you’ve developed for it is FAR more compelling than the original? My initial story was a romantic drama involving a doctor in training and her lover, who turns out to be a killer. I started it years back in a writing class from writers.com, but the more I wrote (her POV), the more I became enamored of the antagonist (the killer). My sequel envisions them after he is released from prison, and due to a complex situation, she shows up, and then things get REALLY messy which is the last thing he wants. This book has crime, politics, murder, infidelity, and a mystery in it, but what REALLY scares me is that it needs to be written in the his POV.

So how on earth does an unlikely housewife/mom/entrepreneur/woman of faith like me writer this ex-con?

And how on EARTH do I write the male perspective? Tips and suggestions are more than welcome, because I think I need to release the original tale and just go ahead with the sequel. (Hey I can always do a prequel, lol.)