[Error: unknown template qotd]I have all sorts of problems with the way this question is phrased (damn the multiple meanings of "love"! and fuck the word "destined") but I think I can address the essence of the question.
I don't think we can help who we are attracted to. It's some sum of biology and life experience (associations with certain physical features and personality traits based on others we know with those traits, etc) that give us almost innate preferences for certain people. Timing also plays a factor, like what we're looking for when we meet the person, the context we meet them in (some places are just sexier cues than others) and, if we're a heterosexual female, whether we're at a certain point in our monthly cycles that gives her a preference for a masculine vs. androgynous man. Attraction is instinctual; you feel it almost instantaneously. I don't think there is time for free will.
I don't think we can even help *falling in love,* either. Once all the right cues are in place, the proper hormones kick in and our brain goes into crush mode. Some people are better at resisting (or logicking themselves out of) the pull of this, but for most of us feelings are pretty instinctual as well.
HOWEVER, no matter how we feel, we have free will regarding
how to act on it. Just because you find a person beautiful doesn't mean the angels arranged your fated union in heaven. (Yes, I'm talking to you,
James Blunt). Finding a person beautiful doesn't even mean you have to even talk to them; you can choose to just walk away. Attraction is not obligation. A crush is not a mandate to pursue. And even if you have already fallen hook line and sinker in love, you can choose to surround yourself with supportive friends, nurse yourself with a few sad movies, and start to forget them.
And, surprisingly often, this is the best idea. Sometimes we can see from the get-go that a person we are attracted to is unaccessible or just straight-up bad news. (James, you said it yourself: "She was with another man"!). Sometimes we find out they aren't into us, or as into us as they ought to be. Sometimes we discover they self-destruct or abuse others, or other dealbreakers. Sometimes we just discover they're going somewhere or doing something that doesn't fit in our life plan. I don't think our feelings for them "fate" us to suffer in unpleasant circumstances. Our free will is our gift to walk away.
Walk away, and perhaps find someone new. There are plenty of other options for love out there. I think the concept of soulmates, one single true love in the entire universe which you must find or die lonely and incomplete (even if they live in Mongolia and you'll never meet? even if they live in a parallel universe? even if they're already dead??), is one of the most illogical (and depressingly pessimistic) things I've ever heard of. Why on earth would only
one person possibly be fated to be with you? We may have a very specific set of preferences, but there are more than 6 billion people on the planet, for crying out loud. What's more, we are biologically wired to mate (and probably to mate with more than one person); our species would be gone if we had to hike over seven continents to find our One True Partner. However so much you love the one you're with, there's another (probably hundreds of anothers) you could love just as well. You might love them *differently,* as they're a different person; you would connect in different ways and your relationship might have a different energy or dynamic; but it would still be love, just as valid as any other love. (Take it away,
Tim Minchin!).
Finding someone to develop loving feelings for involves an element of chance, certainly. But choosing to enter and maintain a relationship-- true, lasting love-- is all up to you.