Ah, here we are. On 2407.3 (turn number 75, PBWShatteredHopes_75.zip), I received a message that I had stopped an attack from your empire Glyn. Also on this turn one of my CI projects "failed" (ie filled up). Was it here that you got a message that I had "attacked" you? Thing is, I had no offensive projects running.
Of course on the very next turn I blocked 3 attacks from you

And we know the rest..