Did anyone else think Mellie had something to do with it?

Right before the assassination attempt on Fitz, Mellie all a sudden started pleading with him to turn around and go home. Even before the shooting, I was already thinking “why is she being so weird?”

Then it happened and I was like “a-ha Mellie’s involved somehow” but obviously nothing ever came of that.

So my question is did anyone else think this? And what was Shonda Rhimes’ reasoning for putting this scene in? Was it to illustrate some sort of intuition on Mellie’s part or just a cheap trick to keep the audience guessing?