I think she is getting suspicious of me liking her?

[C.E.F.]

I am 16 and secertly in love with my 15 year old best friend. We have known each other for 3 1/2 years and we bowl together on a bowling team with my two other friends. She dated my one friend I have known for 4 years. She just broke up with him over a month ago, but I think she has liked me for some time now.

Here`s what happened. I was on twitter tweeting and I tweeted this on November 21, 2012. Here is the full conversation.

"I don`t know why I haven`t told her yet, what the hell am I waiting for?!? #lovesick" November 21, 2012

"Sorry for creepin on ur twitter but who are you talking about?!? Lol" December 24, 2012

"No one, just don`t worry about it." December 26, 2012

I made that tweet more than a month ago, and I made over 100 tweets from that time to now. How did she find that tweet a month later after it was made? Why did she ask about just that one tweet? And why was she "creepin" around on my twitter account? Does she actually like me, too? Am I ready to tell her how I feel about her? And yes that tweet was pointing towards her, but I never said her name just the word "her". Please answer these confusing questions.