Originally Posted by SchrodingersCat
In a committed relationship, you have more to lose, so there's more opportunity to feel jealousy. And because ideally, a person wants their partners to be happy and fulfilled, so they may be more likely to feel compersion rather than envy.
I think it's the opposite. When you're in a committed relationship you know where you stand or else to me it's not necessarily a committed
relationship so there is less inclination to feel jealous and perhaps more inclination to feel threatened because, as it's been said, you have more to loose if things go awry. In my experience I feel jealous when I don't know where I stand with a partner so newer relationships where there hasn't been as much communication have more of a tendency to evoke jealousy in me.