You can say you're moving your business into a different direction. Tell him you don't think you two are a good it anymore. you can tell him you have a new minimum time requirement or increase your rates for him. You can be busy overtime he wants to book or just tell him you don't think you should see him anymore. Never do this in person and try not to turn him BSC because of this.  

Many ladies try not to do this because you never know when you will need to see him again to make ends meet. or if you would change your mind.  

Some of these are better than others, but they all work more or less. lol

I would just let him know and move on. Easier and more polite than dragging things out and having him email me over and over and having to ignore him.

And why would you not want to see a client again?

I can see being dumped in a civilian relationship, have had it happen all to often, but this?  One more thing to worry about ...  :-/

She probably dumped you because she couldn't remember your name in between appointments.  OR, the most obvious reason is in your handle.  When providers want to whittle down the client list, the first ones to go are the cheapskates, second are the guys that can't get them off orally.  I guess I am suggesting if you tip them even, some, but not all, will even put up with YOU.  

Daty, Change your handle, it's hard to take you seriously.

Back to your question. It does not matter. It's a hobby. Move on.  

Some girls don't feel like dealing with drama. In the end they owe you nothing.  Learn from your mistakes and go have more fun.  She worth the time or effort? Really?

dumped by about five gals, and I've dumped about five gals, so it all balances.

 
The way is always the same:  You just stop contacting them and stop responding to their communications.

Life then goes on.

It's the rule of this game.

she needs to see your sorry ass. Oh, maybe there is a sign, it says "closed".