UT, first of all, listen to Vinnie, he is giving you good advice. I went through something similar to his situation, but my daughter is only 10, so I haven't had to deal with the boys calling her, yet, but it will happen. OK, the three things to look for in a long termer.
First, and this isn't a big surprise, is HONESTY. If you keep catching her in lies in one form or another, this isn't a good sign, and will probably not ever change. I don't think I have to elaborate on this one, as this is pretty much common sense.
Second, don't ever get married to anyone who is SELFISH. My ex-wife, some friends and even a few relatives who have been unfaithful all have one thing in common, they are all selfish, only thinking of themselves first. When my daughter was born, I went into Mr. Mom mode, and my X couldn't handle the fact that she wasn't # 1 on the list anymore. She was 1b, but that wasn't good enough. So while my daughter was 5 months old, she was out banging one of her coworkers on business trips while I stayed at home for 8 weekends straight and took care of my daughter and gave up all of my activities. I'm sure there are exceptions to the rule, and not every one who is selfish screws around, but I would bet that a great % of them do.
Third, if you think you have found Mrs. Right, see how she is around her father. If she adores her dad and treats him like a king, she will do the same to you. If she is bitchin him out and treats him like dirt, your next in line. Never hurts to pay attention to her mom too. The fruit doesn't fall far from the tree.
As far as when you think you have found the "Right One", I can't answer that, only you can and you will know. Your wedding day should be one of the happiest days of your life, and you should feel like the biggest stud on earth the day you are standing up there in front of all your friends and family. If you or her have any reservations, something isn't right.
One little tip for long term happiness, and even to for the one nighters is this, WOMEN NEED TO FEEL APPRECIATED. If you make her feel like it was the best thing that ever happened to you the day you met her, you will either be depending on the situation:
1) getting blown
2) living in a happy home
Women love to complemented, and they should be when the time arrises. Also, a little PDA (public display of affection) never hurts either. Hold her hand or give her a kiss on top of her head while standing in line somewhere. Chicks like to have affection shown to them in front of other people, it helps to build up their self confidence.
In Review:
-never marry anyone who is dishonest, selfish, or doesn't adore their dad
-make sure she has the inner beauty to go along with the outer
-make her feel appreciated
-compliment her often
-PDA
Remember, she needs to sew her oats just like you do, let her. I don't think that there are to many chicks out there who are virgins when they get married. You are right in the middle of the funnest years of your life, enjoy it. If you two are meant for each other, you will find your way back, and she will definetely know how to track you down.
One other thing that Ryson touched on, believe me, you will be better off waiting 5-6 years anyway to get married and raise a family. I am 40 and look back at the crap I did when I was your age and the last thing I should have been doing was being a dad and changing diapers. I am so much more mature and patient now it is not even funny. I can still go out "kick it" with the best of them, but priority # 1 is my daughter, and that will never change. 15 years ago I know I wouldn't have been the dad that I am now.
Good Luck and I hope this helps.
I think that is enough therapy for one day. NO CHARGE
