Still a weak move

In this game i look forward to open m15180s centre. After the attempt i didn´t find a solution. I decide to do a weak move. Its in the 10. ... Lady e7. It has no effect. But the opponed fighing more. I almost lost more centre and it looks like bad for me. But in the further moves he didn´t see, that his lady becoming weak. With a glory chess he lost. Here the game.