Apple58, Zebra, Shawn and Pac55 all make some very good points. Having a relationship with a chica beyond the "por hora" standard can be very rewarding, but needs to be approached with knowledge, experience, and the ability to control your emotions... But this is NOT for newbies. WARNING: advanced mongers only!
I'm sure everyone here agrees that taking the Rolltide/StingRey path is the road to ruin. I saw Rolltide more like a guy who goes skiing for the first time and decides to take the lift to the top of the mountain and just GO FOR IT... Instead of taking his lessons, doing pizza wedges and gradually working his way up to parrallel skiing, etc... (LIKE MANY HERE TOLD HIM TO) he decides he knows it all and hits the top. And predictably he ends up in a snowmobile and a stretcher heading for the the hospital.
On the other hand, with practice and time, one can learn how to glide down from the top in elegant form and control. You can conquer the mountain and develop your unique style. One of the things I have enjoyed in my two years here is watching the growth and development of my CRT brothers' own personal mongering styles. And many enter into relationships not governed by a clock. As Pac55 pointed out, there are many different possiblities. KCCostarica, (now apparently "Casper") wrote this in a recent thread:
KCCostarica wrote:
There is a Colombiana that I met at Del Rey I have been hanging out with lately. I don’t really call her my novia, but in fact she probably treats me better than most girlfriends I have had. The main thing we have is just great chemistry and we have a lot of fun together. I really enjoy hanging out with her and she seems to enjoy me. I paid her for sex once and then I told her I would not pay her any more, that I would rather be a friend than her client. I haven’t paid her since. She comes over late sometimes and spends the night or we will hang out in the afternoons. I've spent the night at her place a couple times. Sometimes we have sex, most often we do not. She gives to me what is otherwise lacking in the monger lifestyle and I think I give her the same. It is nice.
The nice part is that I am free to pretty much bang anyone I want. Our only ground rules is that I cannot pull another chica out of the Rey in front of her and I can’t stand around and watch her when she is working (which I don’t care to do anyway). If I see her at the Rey, I give her a kiss on the cheek, say hello and go about my business.
She would be a great girl friend if not for her line of work. I have had few women treat me as well as she treats me. I am very happy with the arrangement.
I think if I lived full time in CR, this kind of arrangement would be for me. The key, I believe, is to be able to accept that your hooker novia is phucking and sucking other guys all day and every day. If you feel even a twinge of pain over that, be careful. Not easily done, I know. Double diamond territory here.
Rolltide of course never had a chance. Shoulda stuck to the greens. StingRey supposedly mongered for years before his Ingrid disaster. Guess he just wasn't a very good student.
I am one of the guys who has a regularita in CR. She normally will get about 50% of my leche while I'm in town and that's fine. I like the balance between the GFE and the hunt for fresh meat. There was a unique sexual connection between us from the very first session almost two years ago. A couple hundred leches later it is just as good. Why throw that away? On the other hand, the excitement of fresh new lips on my C*ck is only a walking tour away. It is really is having my cake and eating it too.

Where else can you have the benefits of a GFE "emotional relationship" and all the hot PSE sex that you can handle with the leche you've got left? It's a routine that's worked for me for over a year now. I didn't jump into this as a newbie though. It took about 10 trips to CR to refine my personal style.
One final thought:
There is much on this board advising newbies on how to play the P4P game "por hora" or "TLN" . Not much here on how to manage a novia correctly. HMMM...
PHX