Q:What's the first thing that comes to mind when you hear the word jealousy
The first thing? Uhhm, lets go with insecure. The person feeling jealous obviously feels like whomever they are jealous of has qualities that are more attractive to those who they care about than the qualities they themselves have. Because of that, the individual gets taken out of their comfort zone and feels threatened (not the right word, but close enough), therefor leading to lacking in trust and assumptions.
Hahahahahaha I love it when hockey comes into pop culture