You've never felt it. And I hate that for you, seriously; I know that sounds weird or insincere because you struggle to connect with people, but even though I've never met you I feel for you. Your parents may "love" you, but they also abused you, which completely fucked up what should have been your example of what love is.
I value love . . . because it makes me feel like I'm whole, and when I feel like I'm whole I realize that before I was whole I was incomplete. Caring for someone else and knowing they care for me gives my world structure and purpose. It's like the world is this vast, empty, pointless matrix of nothing, but putting in people I care about gives me some waypoints, and I start understanding how the map is laid out. I'm not just talking about romance, either.
you at least find some of them interesting, though, right? Else you wouldn't post here nearly so much. They offer you more than nothing at all.