Sounds like you are doing well to me. First, why not date W and see how things go? After all, it isn't simply up to her whether or not things work out. You may find that you aren't interested in an R with her. Again, if you want to try, the choice is yours, set a future date to reevaluate and keep her on double-secret probation until then.
Second, I'm not a big fan of coerced C, unless it is for someone who literally needs to be committed. The more you try to coerce C, the less W will be open to it. And, clearly she is not open to it, or she would find a way to make it work. As she is not open to it, a coerced session would be pointless and a bit demeaning to her. Given you don't want to demean W or waste her time, let her make her own way to C in her own time.
Third, it sounds like you are not being a doormat and are staying detached. Both are essential. Her refusal to go to C is her choice. How it fits with your boundaries is your choice. Perhaps it is a dealbreaker for you. Perhaps not. If not, there is still probably some important boundary work here to be done. DON'T focus on fixing W by coercing her to go to C. DO FOCUS on what works for you. Exactly what behaviors are unacceptable to you? "W, I admit I hoped to encourage you to go to C, but that is really your choice to work on yourself how and when you want. I changed my FB page because it was the right thing to do if we are going to date. But, I do have some things to share with you. First, I think to give our R a fair shot, we should be exclusive. Second, the anger stuff doesn't work for me. This doesn't mean that I'll disappear at the first sign of anger. But, it does mean that I won't tolerate it forever and that it will be important to me how you grow with respect to handling your anger."
Remember, dating is a process to see how you fit together as romantic partners. YOU are checking things out just as much as she is, probably moreso, as she already proved to be unreliable...
