Poly people can be successfully monogamous, as polyamory is not non-monogamy. It seems interesting to me, however, that loving many but being sexually focused on only one can be done. I have never been able to do that. Of course, I am an admitted non-monogamist, however.
This is a bit garbled. What I mean is: you don't have to "go back" to being mono if you are polyamorous. You can be polyamorous and mono. Does that make sense? I guess you could even recognize you are non-monogamous and just choose not to act on it. I haven't had much success with that, however.