I'm pretty sure I know what the problem is.
I agree with everyone else's advice in this thread, but I'll differentiate in a new direction a little bit here.
The problem is that you set the wrong frame with this girl. In her mind, you're just "one of the bros"...a harmless, could-never-be-attracted-to-unless-something-extraordinary-happens male friend.
Now, from her perspective, this "friend" of hers is suddenly acting very strange. He goes from behaving normally to suddenly being overly ****y...and not very funny. She doesn't know what to think, but she's obviously not getting that attracted. He is her friend though, so she stays cordial.
If you want to make her attracted, less talk and more action.
Go do something with her. Interact with her in person. Do an activity together. If you continue down this path, she's just going to keep thinking you're weird and she might eventually directly call you out on it.
I agree with everyone else's advice in this thread, but I'll differentiate in a new direction a little bit here.
The problem is that you set the wrong frame with this girl. In her mind, you're just "one of the bros"...a harmless, could-never-be-attracted-to-unless-something-extraordinary-happens male friend.
Now, from her perspective, this "friend" of hers is suddenly acting very strange. He goes from behaving normally to suddenly being overly ****y...and not very funny. She doesn't know what to think, but she's obviously not getting that attracted. He is her friend though, so she stays cordial.
If you want to make her attracted, less talk and more action.
Go do something with her. Interact with her in person. Do an activity together. If you continue down this path, she's just going to keep thinking you're weird and she might eventually directly call you out on it.