Some people may find things that are charming about a person when other people don't find it charming.
If you are involved with a person you catch flirting with someone else, you can confront them about it.
Such a person is a bully.
It shows how a person explains the behavior of someone else.
A bewrayer is a person who betrays someone else, or who divulges information to someone else.
A sympathetic person is someone who feels pity of someone else.
You should not date someone when they are with someone else because that means that the person you are with is cheating.
More than anyone else.
An educator is someone who teaches or learns from someone else.
imposter
When someone else writes about someone who is deceased, it is called a biography.
When that someone said they did not like someone else you should have asked why they didn't like that person. It is called 'communicating.' If you like the person the other person does not like don't be afraid to say so.
No, a person cannot use a check endorsed by someone else. A person can only used a check written out to them and endorsed by them.