Hello everyone,
I have been interested in this girl for a while, and lately she just broke up. I see my chance so i approached her on snapchat. She seems to be friendly and we chatted a little. I used some pick up lines and thought it works, so i mentioned about exchange phone number and facebook. As my plan she said yes and i gave her my phone number + facebook account. Unfortunately, she seenzoned me??? I think she forget or something like that because snapchat have auto-deleting function. I said one or two sentence to warrant myself (Something like: I'm not the bad guy, etc...) go with a invitation to be friend. She said yes again but after i sent my number and fb account one more time, she only gave me a seenzoned. After that I snap to her sometimes but she only seen, never snap back. At this point i realised that i have a huge mistake but don't know what it is. So can you tell me what can i do now

Sorry for my bad English, please help me.