Coming back to the original question of whether men and women define love in the same way - first of all, I think "love" represents different things fr different people, regardless of gender. I don't believe in generalizations so I don't believe there's a set definition of love for women that's separate from what a man might think. There are similarities, however, that can't be denied.
I, personally, thought I'd been in love way more times than I actually had (which I later realized!). About expressing love, I think it again varies from person to person. I know women who'd rather express their love for other halves thorugh actions rather than words, and I know men who'd go all out and keep telling the other person how much he loves her.