<human>: This girl has been my friend for years and I have liked her since we met, we even "went out" a couple of times when we were younger. The only problem is, I never stopped liking her and she, presumably, stopped liking me or always saw me as just a friend. Many of my other friends note how she acts differently around me, especially how she laughs differently when I say something funny as opposed to someone else. Does this mean or indicate that she also likes me? That's something I've always wondered but never asked. Today my intrigue came to a head as another friend was saying how she originally didn't get on with her bf of 3 years and he was just persistent. I said "so basically I can get any girl if I just keep trying?" and my friend who I have a crush on said "you've tried with me for 5 years" then we laughed, though I was very confused as to what this implied, if anything. Any thoughts or advice? Should I tell her? Does she know already?

Can you summarize the given text in a few sentences?
<bot>: Have a crush on one of my best friends, she said something that may or may not imply stuff, I don't know whether I should tell her I like her.