I've read about it, and I can psych myself out enough to imitate the feelings you're supposed to have, but...no, I've never felt it genuinely. I've found I'm just not a romantic person - what appeals to me about a romantic relationship is the friendship aspect of it, the idea that there's one person to whom you've made a commitment, and who's responded in kind. I used to try and make myself care about relationships, but at this point, I think I've experienced enough that I can say I'm just not interested in that kind of relationship. I mean, I'm the only person I know who's never once had a broken heart, and I have difficulty understanding the concept of caring so much about someone that you're that upset when the relationship ends.
I do have a version of love, though; I can feel really, really intense affection for close friends and family (and pets!), that can only be expressed by massive hugs and thoughtful presents. I also get crushes, but to be honest, it's usually something more akin to admiration. And I have this weird thing where, when I see someone I find attractive, I tend to just stare because I like to look at them.
The problem is that the affection, crush, and attraction components seem to be completely disconnected - yet one more part of the reason I feel like a bit of a freak in social situations. And I make light of it, but it's not something I talk about to normal folk, because when you say that you don't feel love, they tend to find that disturbing - a sign that, "Wow, there's something really wrong with this person."
This is one area in which I wish I were normal more than any other area.