I'll try to answer yours if you answer this decently. Please?

[918]

So I sent this girl I've been trying to befriend, a message over a week ago, she never replied, so then last night I asked if she had seen my message. To my luck she hadn't and said to me "Oh my gosh I actually didn't swear to god !! It never popped up in my messages !!! Naw that's so sweet of you 💗 thankyou so much ".
At this point I was a bit bewildered and sought of freaked out so I said "your welcome" then left. Shortly after she said "how lovely". What is she trying to imply? Is she saying oh how adorable this boy said this to me, or is it just being nice, or a legitimate thank you for this compliment, I'd like to talk sometime?

The message I sent her said "I've gotta be honest with you, I saw your photos at the ball, and you look beautiful in a ball gown. Now I don't care how you respond to this, but I just thought you deserved to hear it." Just in case you're curious.
I'm just a bit flustered because I never thought she even acknowledge me let alone this, so I don't want to blow anything up or make a mess of this.
Just to clarify she lives in a different city so facebook is the only way to communicate.
I don't want to see if she's interested in a relationship, I just want to be friends, and what I am asking is whether she is being interested in a friendship, not a relationship.