Guys and Attractive Quirks

So I've been working on my latest book and I am in love with the premise and just want so badly to do the book justice. But there are some things that, as I write, just don't feel right with the book. I had a beta reader run through the first few chapters and offer some feedback, most of which I plan to incorporate because she was able to come at the 'problems' from a different angle and help provide solutions I hadn't considered. I am much excited to put those new kinks into the story.

There is one piece to the story still giving me some trouble, however, and it's that I haven't yet come up with the right ingredients for my heroine's love interest. He's a likeable enough guy, but I want him to be someone that all my readers will fall in love with, not just my lead character. So I'm asking you -- what traits do you love in the guys you love? What kinds of attractive quirks can I infuse in her crush that would make you melt? Inquiring minds want to know!

xoxo,
bex