How is my move a blunder?

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Avatar of xXMantasXx

I wondered if this is just a site's mistake or did I really miss a better move, because next to the giving away free queen move it also makes me lose a larger number. 

Thanks in advance

Avatar of Aron_08

Yes but after Hxe4 and if he takes the quenn than Bf2 is mate

Avatar of 8100kram

knight takes the pawn can break white's centre, and then u can take his bishop - which is a good trade, and you win a pawn and his centre, kingside have weakened