My secret's out! I'm a romantic at heart.
Well, you have two things going on here, don't you? You mention wanting to write 'love'. I bet you could, with your hands tied behind your back nonetheless. Some people will feel it and some people may not, which goes for any emotion brought on by the written word.
If you wanted to write a convincing gunshot victim scene, I could tell you things like...there's a moment of unreality, very brief, then a flash of ice cold, like you've been dipped in ice water, then pain so intense it makes you vomit. You get dizzy as shock sets in. You cry. You wonder why your blood feels so hot. Sticking detail like that into a story can sell the scene to just about anybody...except to those who have been shot and who've had a completely different experience. They may say, 'It's nothing like that.' What they mean, of course, is that it wasn't like that for them.
Since I doubt you're curious about parental/child love, and instead romantic love, I'll admit to loving three men and two women in my life. One I've been attached to for seventeen years. The others were relationships that lasted different peiods of time -- the shortest six months (she threw me over for a blonde), the longest four years -- but I loved them all. Was it as strong as the love I have for my husband? That's a tough question. Those relationships are years old. They felt very strong at the time.
Nor will I bore you with all the trappings of what I think make a successful marriage, much of which is cooperation, sacrifice, and compromise... not three-day romantic weekends in the Poconos. You want to know about love, and, believe it or not, I can come to a point, so here it is: I'd willingly, without a thought, without the slightest hesitation, die for him. I value my life, don't get me wrong, but if I saw him threatened, my first emotional reaction would be to put myself in between him and harm.
Does everybody feel like that? Probably not. Maybe. Who knows? There are infinite ways to love.
A nod to your observations about the social aspects of love and romance. And I have a whole slew of thoughts on love as a social convention, but I will save them for later, before you ban me from your blog for being too long-winded.
Take care, my dear. And best of luck.