I don't see any secret diplomacy that you stated. All three players look like you were going for continents. For the secret diplomacy they are
CLEARED. Still looking into the multi.
red=mastermjm
green=Mjmurphy
blue=Pixar
Round 1
Blue is trying to get position to take Athelics.
In the first round red attacked blue and got a continent [student services] resulting from those attacks.
Green is trying to get position to take Library.
Round 2
Blue continues going for Athletics and attempts to work toward creating a block in Science.
Red hits blue in football field. {Possible that red see's that blue wants Athletics}
Green continues going for Library by attacking red.
Round 3
Blue takes football field working for Athletics and biology [to block?]
Red starts going for Science either for continent or to work towards blue in Athletics. He attacks blue and green.
Green continues going for library by attacking blue and green. Messed up there green can't attack him self
So by going through the game they were not
only attacking you, it looks like everyone was going for a continent. Later rounds I don't see any unusual attacks supporting your claim for secret diplomacy.