Someone who lie, and go out, drink, go dance with friens,takeing care to keep it on secret of you,and use all kind of lies, and many excuses to justified her accions to not overreact.what define that?

This person could be described as deceitful, dishonest, and manipulative. They are not being truthful about their actions and are actively trying to hide their behavior from others. Their use of lies and excuses to justify their actions shows a lack of accountability and a disregard for the feelings of those they are deceiving. This behavior could be seen as selfish and irresponsible.

Gaslighting