Nicki17

So i have recently come to terms that I am a lesbian. I am not out to any of my friends or family yet...anyways there is this girl who is "straight" and I have been friends with her for at least 7 years and recently I have seen some changes in the way she acts towards me. First of all she always calls herself a "germaphobe" so she doesnt like to hug people or anything like that. But recently one day she says to me can i escort you to class? and then she locks her arm with mine..im not sure if she is being friendly or what...but for the past month or so she has been doing it everytime we walk to class together and does it automatically. Second one day in class we were talking about gays and people being homophobic and she all of a sudden gets defensive about it and starts saying how it shouldnt matter who you love and she acted like she was actually really angry. Thirdly one day me and her were by our other friends and i was sort of teasing her because she wanted to play a game on my phone and i kept running away and not letting her have it after i finally let her have it she said thanks baby.. and my other friend heard it and said woah you just called her baby you got something to tell us here? and her face got all red and she didnt say anything...so what do you guys think? am i being to paranoid about this and she is just acting friendly or is there something else? I would really like some advice, sorry this is so long! Im just realy confused and i dont want to ruin our friendship!