Ok, so here’s how it goes. In the last eight months, I’ve come across 4 (four) different girls. One of those four, I dated briefly for a while and then stabbed me in the back (I won’t go into details). Another one of the four, I am currently dating and seems like I’m setting myself up for the same exact thing. The other two, I’ve never had any romantic relations with but I consider them to be two of my closest friends. The thing is, the two that I’ve never been involved seem to be perfect for me. They have everything that I’m looking for in a girl, yet, I simply keep them as friends and pick girls that are constantly hurting me. The two friends of mine are the sweetest and most lovable girls you’d ever know, but when it comes to involvement, I’d rather just be friends with them. I’ve had several chances to get together with any of the other two girls and start something romantically, but I can’t seem to do it. So, therein lies the problem. What is wrong with me?
You are not worthy. Or at least, that’s what some little voice way in the back of your head is saying. You may be picking the girls that are wrong for you, because somehow you feel you either deserve to be hurt, or don’t even deserve love. How’s that for psychoanalysis-in-a-minute?*
Nothing is wrong with you, and you probably don’t even have deep-seated psychoses preventing you from having a healthy relationship. You’re just learning by doing, and that means making some odd choices and even getting hurt. If your two friends would be “perfect” for you, but you still don’t want to be romantically involved with them, it may just be that deep down inside, you know you’re not ready or in the right place for a serious relationship and so there’s no reason to pursue the girls that might lead to one.
*If this did by chance strike a nerve–stop telling yourself this! You are worthy and you are lovable, and you will someday be very happily in love and loved in return. Repeat this sentence ten times.
I’d say that you’re just immature. You’re looking for something that you think you ought to want (which you’re finding in these unsuitable girls) and while you can recognize the value of the girls who are your friends, something is preventing you from having a romance with them. Are they not pretty enough? Not something enough? What? Find that out, and when you’re ready to appreciate qualities that are truly meaningful and not succumb to peer pressure to date the hottest babes, you’ll probably be ready to have a real relationship. Good luck.
Repetitive quote from the movie Moulin Rouge: “The best thing you’ll ever learn is to love and be loved in return.” 
Stop denying yourself. If there is anyone that you trust and have a great respect for, discuss this issue with them. Preface the conversation by stating something like: “If I don’t take your advice, please understand that it’s nothing personal…”
We should all indulge healthy pursuits more often…
There’s nothing wrong with my friends. Seriously, I think that I would be able to date them if I wasn’t already really good friends with them. And the girls that I have dated are by no means the hottest babes that I have encountered. I also believe that I date who I want because I want to and not because I’m expected to. I could honestly careless what anybody says about me because whatever anyone thinks isn’t going to change who I am. But this is getting off the topic. I don’t believe that I’m immature and I know that I’m already ready to have a real relationship. It just seems that the people that I choose have a real knack for hurting me.
So. How exactly do you set yourself up for being stabbed in the back? I’d think that the responsibility for stabbing someone in the back is solely one of the stabber. 
And if you know she’s going to stab you in the back, why are you dating her?
As Oprah says, if you do what you’ve always done, you’ll get what you’ve always got. I don’t think there’s anything wrong with you, but you may be attracted to women who are not particularly healthy for you. Sometimes when we see an unhealthy pattern developing, it might help to step outside your comfort zone and try something a little less “natural”. Try dating a different type of woman, and see for yourself how getting treated differently feels, and see if you like it.
maybe you’re afraid that if somehow you do approach them, and then your relationship does not work out, that you will not be able to bear the frustration ? that you will have to regreat screwing this up for a long time ?
on the other hand if you screw up a relationship that is not worth it from the beginning, you don’t have to feel bad about it