You may never really know if she is the one, except with the benefit of hindsight. However, there are certain things you can look at when deciding if she's the one for you. The first question to consider of course is whether she loves you? Seems like a stupid question to consider!! The obvious reaction most men would have is - of course, she loves me. Well, may be she loves your money more than you - think about that?? And if that is the case, would you be comfortable getting married to her? If she loves your money enough - she could probably kill you to get it all (far fetched maybe but not beyond the realm of possibility and in fact there have been cases like that).
Would she love you if you lost everything? Would she stand by you in your worst times? Would she whine and complain about you losing your job and blame you or would she offer you comfort and solace and inspiring words to get you back on your feet? Think about these questions and find out from your past experiences with her, if she's the whining/complaining type or the supportive type. A whining/crying/complaining type of woman can weigh down a man and make his life a living hell. Apart from your usual problems at work, you'd be bombarded with negative thoughts and feelings. Is your woman like that and can you handle all of that whining and complaining for years and years to come?
How about the honesty question? Is she honest with you? Does she lie to you more often than not? Do you completely trust her? Would you trust her with your life? If she is not being honest with you on relatively simple issues, can you expect her to be truthful to you on important issues? I'd guess not!!
How about her commitment to you and to the relationship? Do you know if she is fully committed, or does she have a wandering eye? If she's the flirtatious type, are you sure it is harmless or is there more to it?
Does she want to have kids and in a specific time frame, as you do? Generally, one assumes that your woman would just be as ready as you to have kids and start a family. So sure are they that they don't even bother to discuss this subject. Well, do bring up this subject at some point in your relationship. The last thing you'd want to have is a woman who doesn't want to have kids as yet, when you totally want to start a family and have kids.
Is she the type of woman who wants to mold you into her own view of how her man should be? Well, if she is, are you willing to allow for that? Do you want to be told what you should do all the time? Do you like that feeling of being told and would you want to experience that feeling for possibly another 50 years? Think about that!!
You wouldn't of course expect your woman to be your slave and do all the housework for you - but is she the type of person who is downright lazy and expects you to organize and maintain things around the house?
If you have asked all of the above questions to yourself honestly and have come to the conclusion that she passes the test on all of the above - then you can be relatively sure that you have the right woman for you.