It's title time and I've got a WHOPPER in mind!

This week I'm prepping the blurb and title for the new book. All along I've had one sub-title in mind: 

A 90 Day Dating Guide to Long-Lasting Love. 

I think it sums up the idea of the book quite nicely. It's the "main" title that I've struggled with most. Throughout the book I analogize my dating experience to the "Old Man and the Sea" so a fishing theme runs deep in it (see how I just did it there too ;) )  Anyway, I've been playing with the word "KEEP" I wanted to find a keeper, but more than that I wanted to be a keeper, the kind of woman a man WANTED more than he wanted to breathe. I wanted to be fought for and prized, I wanted to be a keeper. So I was thinking of a title like this ... 

How to be a Keeper: A 90 Day Dating Guide to Long-Lasting Love

I shared my idea with the handsome fisherman I now call my husband, sure with fishing sensibilities like his, he'd love it... but no, not so much. He gets lost in wordy minutiae and thought it was a bit much. We brainstormed and he, the man who bought into the strategy I dated with had a controversial idea for the title. The title was SO CONTROVERSIAL that at first, my Christian sensibilities couldn't get past it. But he argued his case asserting firmly that this title will sell and is, in fact, THE essential cornerstone of my strategy.
So now, ladies and gentlemen I ask you which title do you prefer: 

How to be a Keeper: A 90 Day Dating guide to Long-Lasting Love 
OR
UNF*CKABLE: A 90 Day Dating guide to Long-Lasting Love

I will take all thoughts and opinions into consideration and thank you in advance for all of them! (Oh and if you're having fun following my author progress, be a Patron and get the skinny on publication prep and book blurb building!)