For me, it is a matter mostly of "religious convictions" that hold me back. Others in this topic also say the same thing. Let's face it, as Christians we have a much smaller dating pool. Why?
1. We cannot date or get serious or marry a non-believer. That's pretty much a no-no.
2. We have a much smaller pool of potential partners to choose from. Let's be real here, how many serious, God-loving or fearing, whichever you prefer, Christians who are dedicated to their faith, single, attractive and desirable do you know? For many Christians, their churches are filled with married people, older members and very few young, eligible singles.
3. We cannot compromise in matters of sex or morality. How many non-Christians want to pursue a path of purity until marriage...? I hear crickets chirping.
4. We do not live the party lifestyle. Sure, there are some non-Christians who also do not, but many, many people who are not Christians live for the weekend, when they can go out, get sloshed, pray to porcelain god and hop into bed with someone new and exciting! I know many people who fit this model to a tee.
5. We cannot compromise on our values either. We want to raise up godly kids to love God and make the next generation better for Christians, not worse. This usually includes desiring marriage, kids, standing against moral issues that most secular people endorse and so on. How can two walk together unless they be in agreement? Amos 3:3.
6. We as Christians have different priorities in life, knowing that heaven is eternal and life is but a vapour. We want to follow God, witness to others, and not focus on menial, temporary things like money, status, cars, boats, keeping up with the Jones' and keeping a focus on the Lord and heaven. Again, most non-Christians will not see eye to eye on this either.
So you can see in matters of morality, faith, values, finances, love for God and the like that having someone of similar beliefs is essential for a Christian. And the lack of suitable Christians out there who are single and eligible makes it quite tough for the rest of us believers, so it is a sacrifice for us to live this life at times.
I know for me, I am not single because of anything outwardly. It's got nothing to do with my looks, attitude, behaviour or style. It is because I hold such foreign values and beliefs to society and the world that I have been forced to deny myself the pleasure of getting to know better many single, attractive, interesting people. But for a Christian, this really isn't much of an option I'm afraid.
I get what you're saying, have faith and all that. But that is easier to say than do. Sometimes it is a sacrifice to serve and follow God, especially in this day and age. I don't think too many Christians would disagree with me on that.