How can I make peace with an excessively jealous adult sibling?
It may not be possible. With some people there is just too much clutter in the attic. A thing to try is attempting to keep conversations on subjects which don’t “set the person off”. The weather, what happened on a sitcom, knitting, etc. Finding shared points of agreements that your sibling has can help. Light conversation. A factor is the individual’s overall “tone” or outlook. Some people seem to be ‘always angry’, while some seem ‘always fatalistic’, others seem ‘always critical’, etc. Of course no one is “always” a certain way, but usually there is some kind of prevalent emotion. Cheerful people who have strong interest in others or other things are the easiest to get along with. They don’t hold grudges, tend not to get sick often, will talk of deep-seated beliefs or ideas, generally like people, etc. Attitude and things talked about can clue one in as to how far from cheerful and vibrant a person is. The lower one is from that cheerful zest for life and living, the more they get u