I know no one here is a professional, but hopefully someone know what this is.

NOTE:This is NOT me,this is one of my "friends".

She will make you really happy support you,bring you places,get you presents & get you to really close/good friends.She would get you really close to her. She would invite me over, we'd hang out

She then would bring you down,make you feel depressed,,make fun of you,& just be completely rude.I told her a huge secret, & she told other people.She is also very manipulative, has threaten to hurt herself, or hurt people emotionally, & physically.Throughout the whole relationship, she would just be very controlling(she never wanted me to hang out with anyone). She is compulsive, & possibly a pathological liar.