wow... I was just glancing through this thread, and got a lot of advice for my OWN relationship I'm having. It's interesting. Thank for the question and the many responses... Here's a little of how I believe God has chosen who I am with now.
Over the last year, I've been single, and I would pray and ask God to open the doorway to allow someone to enter my life, someone who respects and cares about me - as I am now - and that this man would be different than all the rest. I quit praying about dating someone, and focused my attention my friendships - letting God work on my prayer as His will would allow.
Then, a year later, a certain man walked into my life - quite suddenly I might add - and it wasn't something expected, in fact I had started to doubt I would ever date or be with someone ever again (And I'm only 23). I had doubts as we dated, because I'd been burned and hurt before I didn't want that again... so from the beginning I told him that I wouldn't sleep with him, that I wanted to wait till I was married. He agreed and we said nothing more about it.
About two days ago, the issue came up again - I don't know about ALL GUYS doing this, but the ones I've dated think that taking the purity from a woman is a game or challenge if they refuse to give it away at first. The temptation was there, and the overpowering "lust" was there, and I pulled away. I pulled away from him and he asked me if I was ok. Before I answered, I whispered a prayer. "Lord, if he is the one you deemed to put in my life, then let him answer me with honesty and truth in his heart. That if he chooses any answer that is not from his heart - and Lord let me know the difference - that we end this relationship before it gets worse." And guess what, we are still together.
I believe God put him in my life simply because God answered my prayers (as always) with the simplest way possible. My boyfriend answered me, looking me right in the eyes, and the honesty was tangible. We are waiting, God gave me a man who respects me, who cares about me, who is happy being with me. I plan to enjoy every moment with him. God chooses the person, and that's a solid FACT.