My real answer to "the question" is this:
For me, it was just reaching a point where...... basically..... it was entirely worth it. No amount of pain or suffering could possibly make me regret it. Even now, I don't regret it - what that means I am not sure..... Regardless of my side comments, I almost want to say "Love isn't a choice"
But in fact, that is exactly what it is.
I think you might eventually find someone you can't help but to love, or at least if you are really lucky you may. In all reality, though, I think "to love", or who/what to love, is the actual reason for free will. That is the most sacred, holy, meaningful choice yo have to make, and no one can make it for you, or take that choice away from you.
That's why love can last for ever.
Because you can choose to make it last forever. Essentially, even if someone "stops" loving you, or it reduces in degree, that does not mean you have to stop loving them, or that you cannot also reduce the degree of your love.
I believe love is the most neccesary, meaningful, holy, sacred, magnificent, real, powerful, difficult, and worthwhile luxury in the world. I say it like that because you do not "need to be in love" in order to live, or have a meaningful life. But if you choose to love someone and have a real love relationship, I think that is the possibly highest form of living.
You don'tneed love to grow up, or be raised, as some people don't get the luxory of loving parents. But if you can live a life of love, then I think that is the grandest. If I were more religious, I would say to love is to live most like god, or as god would most like.