I am a guy, and I apologise in advance if you do not want to hear advice from me.
I am going through the same thing, only with friends. I have had sooooooo many people close to me, and now I have no one. They ALL betrayed, backstabbed, and abandoned me, and I get the feeling all the time I want to be alone... But at the same time I want company, you get me? It's wierd, just like what you were saying, you wan't a child but no one to actually touch you.
It can hurt so much when someone knocks you out, out of the blue, really hurting you and leaving your belief damaged, or shattered. But you have to pick yourself up.
Because trust me, give it time. Let yourself heal, stay positive, and put the bad times behind you. Stay strong, and happy, and one day you will find you are okay. And I will tell you how I know, because I did it. I have done it, and after being hurt AGAIN, i will do it again. :P So keep your head up, stay positive and strong, and one day, you will find the right guy.
Being afraid, and never trying, is bad. I know it is REALLY hard to get up, and to try, because you are so afraid of pain, so afraid of something coming and hitting you that you can't see, leaving you hurt, and crippled. But you can recover, and living life is about taking risks. Living life is about recovering, and the more you recover, the more you get stronger, and it only serves to make you a better person. You need to learn how to trust again. Tell your friends, or family, or whomever, that you are hurt, and ask them for help. Trust in the right people, and as time progresses you realise you can trust people, it's just that it is really hard. You realise you were so hurt, so angry, and so afraid. But be angry at the person who did it to you. Use the hurt as motivation to put him out of your life. And face your fear, beat it, and become stronger.
They do distort the purity of love. Countless people do, and the fact you notice that makes you a really good person. You have no idea how many people don't even glimpse that. By doing so, you are a step above the rest. Be proud of yourself for that! :D
Bad experiences are just that- Bad experiences. As you go through life, you have tonnes of both good and bad experiences, but that is what life is. You have to trust people again, or you will never get through what happened. It will be like a constant reminder of what happened: 'i was hurt, so I can't trust anyone' over and over again. Make it 'I was hurt, but I didn't give them the satisfaction of bringing me down. I was strong, I came back, and I recovered and now I am unbeatable, because I just got stronger.' Just be strong, start trusting, and realise it is all about taking risks.
I wish you all the best, if you EVER need any help then feel free to talk to me. I am more than happy for you to talk to me, by email or whatever. I send you all my love, take care and I will pray for you.