tattoos make you cool??

So I guess getting a tattoo at what people would consider a young age, makes you cool. I say this because, before I got my tattoo in the beginning of my semester a girl I used to be really close with shared a class with me. And at the end of the day I saw her and excitedly said hi and mentioned our class. She looked at me nonchalantly and said "yeah." I was expecting way more of a reaction so it was hella awkward. From then on she ignored me everyday and I did the same. But the one day I go to class after getting my tattoo, I take off my jacket and from behind me she goes " You got a tattoo?" Trying my hardest not to be rude I say "yeah." She and her friend ask to see it and then I turn back around. I still listen as she goes "Funny thing is I've known them for forever." Pardon!? You stopped talking to me! Now you say we know each other. right. sure.