Your prayer has come before the Lord with a heaviness that many a soul has known, and it is good that you have poured out your heart before Him who hears. The burden you describe, the sleepless thought of one who does not return your affection, the sting of being near and yet feeling far off, these are real sorrows, and the Lord does not despise a broken and contrite heart.
There is a truth which must be our anchor in such a sea. As surely as God's will is the axle of the universe, as certainly as God's will is the great heart of providence sending its pulsings through even the most distant limbs of human act, so in grace we must rest assured that He is King, willing to do as He pleases, having mercy on whom He will have mercy. It is not for us to say, I will or I will not, and to imagine that our strong desire can conquer the Holy Spirit or make the blood of Christ of no effect for our own ends. The work of the Spirit, which is the effect of the will of God, is to change the human will, and so make men willing in the day of God's power, working in them to will to do of His own good pleasure. This is our comfort, that salvation and all our preservation rests upon His will, not upon the fierceness of our own.
You speak of faith the size of a mountain to move the Lord in this matter. Take heed that faith is not a lever to bend God to our will, but a grace to bring our minds into conformity with the will of God so the desire of our heart shall be granted to us as it is purified. They said, we will go, we will continue, we will buy, we will sell, we will get gain. But is it not foolish for a man to feel that he can do as he likes and that everything will fall out as he desires, that he can both propose and dispose and has not to ask God's consent at all. All things are under regulation and have an appointed place in God's plan, and nothing happens but what He permits or ordains. Knowing that, we will not always say, if the Lord wills, yet we will always feel it. Your prayer, thy will be done, is the right prayer, and you must hold to it even when the heart would pull you another way.
Do not think that because the burden is heavy, it is therefore a sign that God intends to give you this very thing. Everything that God does to His people is all love, sometimes the love is a little disguised, but the love is always there. If He caresses, it is love. If He chastens, it is love. If He smiles, it is love. If He frowns, it is love, for God is Love and to His people nothing else but Love. At times He withholds what we crave, not because He delights to wound, but because He loves us too well to give us what would not be for our good, or to allow us to live in a way that would not be for our holiness. Would it be any evidence of God's love to men if He allowed them to live as they pleased and yet still have all the comforts they desire. No, His love is wiser than that.
You will never be happy till self is dethroned. I know some of God's children who are in great trouble only because they will not yield to the divine will. Who can refuse to be vanquished by love. Who will not say, Lord, thou hast won, at length I yield, my heart, by mighty grace compelled, surrenders all to thee. Against thy terrors long I strove, but who can stand against thy love. Love conquers even me. This is what is asked of you now, an unconditional surrender. He asks of you, will you yield to me, will you throw down your weapons, will you end the war. If so, He gives you His hand and says, go in peace, there is peace between me and thee.
Therefore hear counsel in the Lord. If this young woman shows no interest and will not be your friend, you must honour that boundary. To press or to harbour anger because your kindness was not returned is not love, for love seeks not its own and does not demand. Do not let hurt become unkindness, as on that day when you would not look upon her. That way breeds bitterness in your own soul. Instead, pray for her as you would pray for any soul for whom Christ died, that she may know the Lord, that she may be kept pure and be led in His way, not that God would compel her affections toward you. And pray for yourself, that the Lord would keep you pure, that you would not seek to possess or to live as if married before marriage, for marriage is a lifelong covenant of one man and one woman, and all that belongs to it is to be kept within it.
To love God's law in this matter is to find great peace. When we love God's Word, we reach forward to the peace of resignation to God, acquiescence in His will and conformity to it. It is of no use to quarrel with God. It is wonderful, if you love God's Word, how things which are stumbling blocks to others cease to be injurious to you.
Look then away from your mountain of desire to the mountain of His love. Nobody could doubt that mother's love when she laid down her life for her children. This is the crowning proof of love. Yet with no claims upon Him, of His own free will, Christ did yield Himself to die because of His amazing love to us. There were no appeals whatever made to Him to die, and yet He died. There you will see a love that will not fail you. Do trust Him, He will never deceive you. Lean upon Him, He will not fail you. And then love Him. May the Holy Spirit lead you to do so.
May the Lord lift this heavy burden by teaching you to cast it upon Christ, to seek first His kingdom, and to wait quietly upon His revealed will. If He has another path for you, He will make it plain as you walk in obedience, in purity, and in surrender. If He withholds this desire, it is that He may give you Himself, which is better.
We will pray for you that the Lord would guard your heart, cleanse it from anger, give you peace in resignation to His will, and form Christ more fully in you, and that He would bless this young woman according to His mercy and keep you both in the way of holiness until He shall direct your steps aright.
Prayer Focus: God, Thank You for loving me. Thank You for loving me, Jesus. God, I ask You in Jesus’ name please bless me with everything that I stand in need of and everything You want me to have. God bless me to prosper, walk in excellent health, and never stop growing in the love, grace, wisdom, and knowledge of Christ Jesus. God bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. God, bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, Your righteousness, and to always respect and obey You. Bless me to know You, the way You want me to know You. So that I will trust You with my life and anyway that You move in my life. Bless me to trust You with all my heart, lean not to my own understanding, acknowledge You in all my ways, and allow You to direct my footsteps and actions. Bless me with knowledge, wisdom, and understanding in all You have called me to do. 
