The phrase "if it's meant to be" implies passivity, and I do not believe we are called to live passive lives. I think that's part of what makes the Bible a "living" word - the fact that we apply it to life and live it. The phrase also implies predestination. If you believe in that, then it would work for you. But this does not work for me since I believe that since God exists outside of time, he simply knows what we are going to do, but he has not necessarily pre-planned everything. If he did, how would you ever decide what his plans are for you for eating carrots or peas for supper? I believe that we are given guidelines in the Bible for choosing our own mate. This would include being equally yoked (have many things in common) and being free to marry "in the Lord" meaning someone of the Faith.
I do believe that everything happens for a reason, but I don't like how it's phrased. It also implies passivity, leaving us without any responsibility for what happens. Yet we know that we are responsible for a lot of what happens. There are things beyond our control, and yes, they happen for a reason. But those things that happen as a result of our own choices and behaviours - God can use them for our own good. Joseph's brothers left him for dead, and Joseph was mature enough in his faith to say that what they intended for evil, God used for good. I think responsibility here is the key - what are we responsible for, and what is beyond our scope? And then when we are responsible for something, accepting the consequences of it, for good or bad. God can (and does) work all things out for his own sake, and for the good of those who love him. So that is also a key - your job is to love him, as he commanded to love the Lord your God, and then to love your neighbour as well as yourself.
If you are looking to apply this to finding a partner, then you have a couple of things to do. First, love God, abide in Christ, keep your eyes fixed on him. This will do amazing things...not only will it bring him glory, but it will also help you in finding a partner. When your eyes are fixed on him, you will make dating choices in alignment with his word and his will. As your own character transforms into his likeness, you will automatically be drawn to those who also have godly character, and as you align your will to his, you will automatically be repulsed by the sin that repulses God (such as pride).
I must give you fair warning, though. It may not happen quickly, which is even more reason to stay fixed on Jesus. When you abide in him, you will bear spiritual fruit. They are love: joy, peace, patience, kindness, goodness, faithfulness, gentleness, self control... So the patience and self control will see you through a lot if it does not happen quickly.