I think as Christians we treat each other first as brothers and sisters in Christ, and first love each other in that sense with respect towards one another, and that means being selfless and honouring others.
Jesus should be your first love relationship, if you cant commit, obey, love, honour, serve, cherish, spend time with your God, you more than likely wont succeed in doing those things with another person for the rest of your life. Our responsibility is to ensure we can play our part, not to find someone to make us 'happy' or 'complete' because for the christian, joy and completion come through Christ alone. Thus giving us no reason or excuse to 'fall out of love' 10 or 20 years later and justify divorce. Jesus, for the christian is and always will be everything they need. It takes that kind of maturity to be able to be in a marriage relationship, and dating, like most of you already mentioned, should be approached with the intention of marriage.
If your walking with Christ and He has your WHOLE heart...then don't worry..He will give it to the right person. You will know and understand His will for your life.