Remember about 3 updates ago when Mario recorded Oliver "fucking" Emma with plans to expose Oliver? Do you think that could/would play into that conspiracy?
Short answer I wouldn't be surprised if I am right. It is only a niggling feeling that I get based on how this game has gone in the past. There has been many a curve ball when we least expect it. Primarily events that have happened between Stefany and Arnold.
Long answer Possible but doubtful.
Mario is unaware of the games that Oliver and Stephany play and the rules that the couple have. He was convinced that catching Oliver and Emma fucking would give him either blackmail material over Oliver to allow him to fuck Stephany or when Stephany caught them in the act she would be so upset or angry that she would use Mario to get back at Oliver. If I remember correctly when Stefany first saw Oliver and Emma she thought that Oliver had broken her rule of no Fucking till she allows it. (This is why I said before that Stefany will get her facts first before acting).
Mario seeing that his plan didn't work, then decided to try and get both Emma and Stefany drunk in the hope that he would be able to have sex with at least one of them.
I do still suspect that Emma and Mario could be working together but Emma doesn't realise just how evil Mario could be and would use her in anyway he saw fit to get what he wants.
If Mario and Emma are conspiring together then I think now that Stefany and Oliver have invited her into the relationship she might think twice about working with Mario Especially if she does eventually have memories of what Mario tried to do.