Just me own view
Personally, I have been poly all my life.
That being said, I am an extremely jealous & possessive person. I am in a dual relationship and both of my guys are naturally monogamous (by choice, I don't force). But they handle their jealousies in order to allow me to be who I am as a person. It does make some things complicated sometimes but we work through it.
Bi & Poly. . .is there anything better? Lol