devour your brain

Could someone please tell me which part of  "can I have your phone number?" is a crime? Because all my friends made it looks like a crime and I didn't think that way, and this kinda embarrassing because I don't know the ethic code between boys and girls here.

Firstly, for me I know that phone number is a private thing to share with other people and I don't want any random people know my phone number. You have to stick with the same people long enough to know their name and their phone number. It has been bugging me since the first day when a person really unwillingly gave ... phone number to me. I was not even intended to annoy ... with texts and calls and stuffs like that. It is kinda annoying when I can read people's mind, and I was just kidding, I can't read mind. So now, part of me said that it would be okay if you just play it cool, because I was simply didn't know that I can't ask someone's phone number. Hey but a girl can dream, right? What if I was kidnapped and I was trapped with my phone, I will call all the numbers in my contacts, and if I added a phone number in my contact it heighten the possibility that I could survive.

Lastly, I don't want this to be like story telling time, but I kinda regrets all the things I did back then and I will not do that again, but sometimes I can be so stupid and break my promises (to myself) beacuse I just simply love to make new friends :)