This girl said she's not interested but body language says otherwise

this girl who I know likes me said its not gonna happen but laughed and got red when she said it...her body language says she does like me. touches me...says I'm amazing and all...but said it ain't gonna happen...my intuition tells me she likes me...but she seems like she has low self esteem. like when she's in a bikinni she puts her arms around herself her stomach area and stuff. what should I do. and this mutual friend says she's my girlfriend when were all hanging out trying to be funny and she kinna smiles and doesn't say otherwise
This girl said she's not interested but body language says otherwise
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