It's hard to say. A lot of people fall out of love. A lot of people lie to get things they want. You probably couldn't find more than a handful of people that you know that ended up with one of the first two people they dated. It takes time to learn how to make a relationship work. Give yourself time, maybe try a different sort of girl.

First off, start with your confidence, number two why are you so focused with being in a relationship right now? what ever happened to giving yourself time, time to discover you as an individual?

dude, I'm 21 and I'm relieved to see that I'm not the only virgin in my twenties. Well, look up David DeAngelo, he's got secrets on how to keep that special someone.
Me? in a few days time, my package for approaching women will come, and I'm gonna put a stop for all this loneliness...

Good Luck dude.
PS: If you really have never hurt your ex's (emotionally of course), well maybe that's the problem, if you try and be the best and love her, love her, love her...with no downslide to your relationship, well the girl is gonna feel pretty bored with it. Next time dude, say random things. And don't follow her in life, let her follow you...because YOU ARE THE MAN! peace dude.

I would appreciate the well intentions of this post but if this dude seriously thinks that is what it takes to be with a women he may want to get with the program, alot of women run their own game, I'm one of them. Each individual is different, therefore you have to approach it on similar grounds(find common ground etc etc.)

Rules in a relationship
Be reciprocol>Mirror the person
Be respectful> It is up to you and the other person to demand respect or personal space.
Work as a team> Instead of working against each other
Stimulate each other> nothing worse then being in a relationship where its same old same old.
Humor> Be random, be silly and be outright funny in those awkards moments.

Find out something a women likes that you could possibly take an interest in, read into it and use it to your advantage.

I'm sorry if you've invested in a program from David DeAngelo. He's a somewhat controversian figure and a lot of people think rather poorly of him. I'm not into the whole seduction training thing but folks who have given it a try have nothing good to say about it. A lot of the principals the whole Jeff Ross movement stand behind create obstacles in building a relationship with someone. I really think you're better off investing in your personal growth than spending money learning how to better market your personality.

dude, the guy has 4 girlfriends...he knows what he's saying. Anyways dude, it won't hurt to see what it's about. It was suggested on this site to visit his homepage for those with relationship trouble.
Besides, I already have experience in that field... I primarely just want to know their psyki. And I believe this will change the way I think towards women.

Anyways, let's get back to the subject dude. We're here to talk about you.

What Candyland said is true, but you've also got to put your needs right up their aswell. Working as a team is great but you can't always work as a team, there's gonna be times where it's gonna get "ugly"...

Peace dude

you shouldn't have to change yourself for anyone. you are just dating the wrong girls you may be too much of a push over tho, no offense, you need more experience and should try and date more often to find out what you really want and what your looking for then you can actually start relationships that might have a chance be playful and give a girl the love and and attention she needs, but not too much cuz then that takes the fun out of it for you and her while letting yourself be yourself