Discovered new gf has a sugar daddy..

Thanks. You're right, I can ditch the first paragraph. I like the last paragraph to let it sink in to her. I'm eager to get this over with and get over her. Been losing sleep over this BS, over a her. I'm Playing it off one more night until she leaves my house in the morning Thursday for the meeting. I am going to go to work late as I usually leave while her lazy ass lays in bed til past 11am. So she will have to come up with a story as to why she's waking at 10am(the time the John said he'd call her and tell her what hotel to be at by 11am). I'm not sure why you say don't "play all your cards yet"? There's no game to be played. She's cut as soon as she gets the call from me to read the letter. i will expedite the belongings exchange then block all contact: phone, text, social media etc.

The responses to my OP have been generally of the nature:
1) she's a worthless prostitute
2) I'm a womanizing sugar daddy or john
3) I'm an oblivious idiot
4) we are dirty STD carrying individuals
5) there should be no feelings involved since we are such (prostitute/John, etc)
6) I am classes and unprofessional

It's all contrary. I know of her rough upbringing and her challenging times during the period I met her. Too much to detail. She's a person with emotions/feelings. I was attracted to her and pursued a relationship which involved sex. That's not womanizing. We did move really fast though. Made several Las Vegas trips (4 or 5) in a short period of time. So maybe I was an oblivious idiot in some regards, maybe many. Before we started having unprotected sex, I made sure we both had a full STD panel done so we're both clean there. And that's being responsible to all the Nay sayers.
We've spent nearly every day/night together since a week before Halloween. We spent a lot of time together. so there can't be no feelings involved because there are. I know many will knock me, "how do you fall for a ___"?? Haha oh well. I did. And I know she needs me. Not just financially. Emotionally, etc. I bevame her best and only friend in L.A. I am going to feel bad doing this but she'll just drag me down if I don't set her loose. She will be balling/crying when she reads that letter. I do want her to feel a little pain as it was received by me as well. Maybe she can learn by pain. But really I think this may begin a downward spiral for her. It may lead her to really being a prostitute full time. She has a high school education from Venezuela and that's it. No real job skills. Gonna be rough for her. but when I cut her loose, that's when I stop carring and do me. Her lack of values, morals, and gratitude (of me) brought her and us down. Pretty sob words from a womanizing a-hole in regards to a Worhtless hooker (as repliers call us). Oh well, here's one for the books.