God was right where He'd always been: by your side, concerned about you and watching over you. The words of the Psalmist are true: "He will not let your foot slip -- he who watches over you will not slumber" (Psalm 121:3).
What am I saying? Simply this: No matter what comes our way, if we know Christ and are walking with Him, nothing can ever happen to us that is outside His perfect plan. Many years ago, as a young man, I too was deeply in love -- and (like you) I was convinced God had brought us together. When she ended our relationship, I was heartbroken, and I couldn't understand why God had let it happen. Only later -- when God brought Ruth into my life -- did I realize that God had not abandoned me but had led me to the wife of His choice.
Make sure of your commitment to Christ and His will for your life. Then thank Him that He is with you, and if it's His will for you to marry, that He will guide you to the husband of His choice. In the meantime, learn to be patient and to seek God's will in everything.
Remember: God's ways are always best -- always. He knows what you're going through, and He is with you and will help you get through it. But most of all, His plans for you are perfect, so trust Him to lead you "in paths of righteousness for his name's sake" (Psalm 23:3).