What does "boyfriend/girlfriend" actually means?

Few days ago, my friend ask me about how is my progress of mission.. Mission of collect my cong dong-ness.. I told her that i had give up to collect it because i know my cong dong can't work on what i want. Then she asked again, what type of relationship between i and Comic currently.. I answered her, we are good, take care each other and share together.. We just like a couple.. She is very umcomfortable with the word "couple".. Third question she asked, "why you said you both like a couple?" Then i try to depict the situation when we were hanging out and told her that we are keep contact everyday either sms, call or msn. We are always care each other, know what happen at the surrounding.. Beside than that, we always keep tease and joke too.. As time goes by, we become close and closer. That why i got the feeling like falling in love..

She persued me to tell Comic the truth again and i said actually i not need the name of "girlfriend or boyfriend". What i want is he care about me and always stand by me. I don't mind to do something for him without credit from him. I just want him feel comfortable and happy when we are together. She suddenly added, "How about the 'body touch'? You can do something normally a couple will do even you both not a couple yet?" I answerd her, no hand touching, no hugging, and no kissing lo.. Wakaka..

Actually, not only we can't do the 'body touch' but some words we can't speak it out too.. Just like "I miss you", even i'm missing him so much but i still have to keep it to myself.. Without the name, we felt embrassing when other friends are joke at us and we just pretend didn't heard or not understand. I understand that i can't resist from him although he is confusing me. I just can't help myself and i can't get him out of my mind too. So, i have to think twice my previous decision, whether i'm mistake. Is't i surpose to tell him the truth?

As the time is pass day by day, the day he gonna far away from me is coming around and i scared i can't get a conclusion in the end as well.