Tonton-sama
This is Kawaguchi Hidetoshi. This is a humble answer to the question.
Jealousy is an affliction, and it's really troublesome.
http://ja.wikipedia.org/wiki/嫉
Regarding worries, we are also dealing with the following questions.
Question “What are people's worries”
http://hasunoha.jp/questions/82
Question “What is the ugliest thing in the world”
http://hasunoha.jp/questions/66
In order to prevent worries from coming out, it is necessary to do something about ignorance (fundamental ignorance), which is the root cause of this, and bring it to a state where the truth is bright.
In order to exterminate this ignorance, wisdom (understanding of the sky) and the practice of convenience (mercify/altruism) are required.
Of course, even if you are a beginner in Buddhism, it may be quite difficult to understand even if they are suddenly told that it is wise or convenient.
Therefore, as an observation that everything is “impermanent,” even if it is simple, that all things and things change, is it possible for the “jealous” self and the target person to have something that does not change forever and forever, whether it is possible to have a state of oneself that is “jealous” forever even when sleeping or waking up, and whether it is possible for a person or situation that remains the same forever and forever without changing about that target person, for example, In addition to thinking about and being understood little by little about the Buddhist truths that are “impermanent” and “unselfish” even 100 years from now... I wonder how to start by being aware of and protecting the “Ten Good Commandments” (unmurderous, unscrupulous, unscrupulous words, unscrupulous words, unscrupulous words, unscrupulous words, unscrupulous words, indecent words, unscrupulous words) I know it.
http://ja.wikipedia.org/wiki/十善戒
Furthermore, I believe it will become important to work on things such as volunteering, service, and charitable activities as an active act of good virtue.
Eventually, I believe that if the heart that treats the happiness of various other people as equals can be nourished, jealousy will surely stop occurring. There's still a long way to go. Let's work hard together.
Kawaguchi Hidetoshi Gassho