Friedel Crafts Acylation: Reaction of acyl halide with catalyst

To form an electrophile for this reaction to occur, the acyl halide interacts with the catalyst. However, on reviewing the conditions for the reaction, I have encountered that the 2 equivalence of the acyl halide is required.


In the case of the acyl chloride, there are 2 ways the acyl chloride can react with the catalyst.


[![enter image description here](https://i.stack.imgur.com/T2Yze.png)](https://i.stack.imgur.com/T2Yze.png)


(Sorry for the sloppy diagram)


In the case of the first reaction, Cl is good leaving group, but what is the reasoning of the second reaction to occur?


