In addition to suppressing and ignoring jealousy, another option is to learn how to acknowledge and deal with it. Just as fear is quite a natural thing and hinders people in accomplishing their goals, so can jealousy be a hindrance to happy relationships. Both can be successfully managed however.

  Courage is resistance to fear, mastery of fear - not absence of fear. - Mark Twain

I believe the same can be said of jealousy. Also note that unchecked jealousy is not strictly a problem of polyamory; it wreaks havoc even in monogamous relationships.

Yes, I should have also said "accept jealousy" as a possibly superior option.

Did anyone else accidentally parse (= more fun) as a strange prefix notation way of saying "more relationships = fun?"

If not, I apologize in advance for my insanity. ;)

Yes, and I have never even worked regularly with a language that parses like that..