Spoby and Mona Theory by Pretty Little Liars Latinoamerica

Hello! 
This is the Spencer, Toby and Mona theory by Pretty Little Liars Latinoamerica

I think Mona is jealous and she put Toby's credential from Radley in a drawer where Spencer could find it...
Why do I think this? Because in the end of 3x16 we can see Mona happy at Toby's. Maybe she knew that Spencer had a surprise for Toby... Plus she was "celebrating" alone. And if Mona was actually  jealous that could be an excusa for ruining Spoby's aniversary or their relationship.

This theory was made by Pretty Little Liars Latinoamerica. 
Thanks for reading xoxo