The photo clearly shows the gap on the ac
magnetic plate and pulley.
I would say that what it shows is that the bearing in the ac
pulley is shot.
You need to stop driving the car until you get that fixed, or the the pulley will ruin the ac
clutch coil, and seize to it, ruining the serpentine belt and stranding you somewhere.
You can bypass the ac
clutch pulley for a short time (the belt will rub lightly on the ac
clutch pulley, and slowly gets cut/worn on the back of the belt).
You can but a complete clutch set (pulley, coil, and magnetic plate), or a complete ac
compressor with clutch, or if you are in econo mode, just the pulley (if the other parts are not damaged).
If you are in econo mode, you need to drop the refrigerant charge, and inspect the parts before ordering what you need. A special tool is needed to hold the magntic plate so the bolt holding the clutch onto the compressor can be removed. I made one myself, but AutoZone Stores now have the tool you will need in the tool loan program.
There are shims used to set the clearance between the magnetic plate and the clutch pulley. They come in a set of five with the ones being used installed on the clutch mounting bolt behind the magnetic plate. The spare ones are stored on the bolt itself, infront of the magnetic plate. When you get to the point where you are taking the plate off, be careful to note where they were when you took them off. The shims only come in sets for like $25, and you may need some, none, or all of them (they are three different sizes).
While you are in there, check the tensioner and idler pulleys. They often go bad before 100K miles. Spin by hand, if loose or gritty, replace. Good ones will spin smooth, and a little drag provided by the grease that is in the bearings. Free spinning? No grease left, replace it.