## Relationships in "The Big Bang Theory"
##
##   author: meisterluk
##   author: flowolf
##   date: 11.06.18, 11.07.02, 11.07.07
##   license: CC BY-SA
##   range: S01E01--S04E24
#
# R = Relationship
# S = Sex, has slept with (eg. one-night-stand)
# PR = Pretending relationship (eg. in front of parents)
# L = one-sided love / #1 hits on #2
# P = Prostitute
# D = Date
# B = business relationship (eg. for research project)
#
# Leonard = Leonard Hofstadter
# Howard = Howard Wolowitz
# Raj = Rajesh Koothrappali
# Amy = Amy Farrah Fowler
# Priya = Priya Koothrappali
# Sheldon = Sheldon Lee Cooper
# Berni = Bernadette Rostenkowski
# Stephi = Stephanie Barnett
# Eliz = Elizabeth Plimpton
# Leslie = Leslie Winkle
# Missy = Missy Cooper
# David = Underhill
# Zack = Zack Johnson
# Lalita = Lalita Gupta
# Ramona = Ramona Nowitzki
# Christy = Christy from Nebraska
# ? = Random stranger

Before              Penny   Kurt        R
Before              Penny   Doug        R
Before              Leonard Joyce Kim   R

S01E03              Leonard Penny       D
S01E04              Howard  Summer      P
S01E05              Leonard Leslie      S
S01E06              Raj     ?           S (Penny's party)
S01E07              Howard  Christy     S
S01E08              Lalita  Sheldon     D
S01E14              Leonard Penny       L
S01E1[<4]-S01E17    Penny   Mike        R
S01E15              Leonard Missy       L
S01E15              Howard  Missy       L
S01E15              Raj     Missy       L
S01E17              Leonard Penny       L
S02E01              Leonard Penny       R
S02E02              Penny   Erik        R
S02E02              Leonard Lesley      D/R
S02E04              Raj     Penny       PR (drunk, to parents)
S02E06              Sheldon Ramona      B
S02E08              Howard  Stephi      D
S02E08              Leonard Stephi      S
S02E08              Howard  Lisa        D
S02E09-S02E10       Leonard Stephi      R
S02E11              Penny   David       R
S02E16-S02E21       Howard  Lesley      R
S02E19              Leonard Alicia      L
S02E20              Raj     ?           S (from bar)
S02E20              Penny   Stuart      R
S02E21              Howard  Prostitute  P
S02E22              Penny   Stuart      D
S03E01              Penny   Leonard     S
S03E02              Penny   Leonard     R
S03E03              Penny   Leonard     S
S03E03-S03E19       Penny   Leonard     R
S03E04              Howard  Berni       D
S03E09              Howard  Berni       D
S03E10-S03E13       Howard  Berni       R (R termination only approved at S03E19)
S03E21              Leonard Eliz        S
S03E21              Raj     Eliz        S
S03E23              Penny   Zack        R
S03E23              Penny   Leonard     S
S03E23              Sheldon Amy         D
S04E01              Sheldon Amy         D
S04E02              Sheldon Amy         D ("she is a girl. she is a friend. But please forgive me, not my girlfriend")
S04E03-S04E24       Sheldon Amy         R
S04E04-S04E24       Howard  Berni       R
S04E06              Priya   Leonard     S
S04E09              Penny   Leonard     PR (father)
S04E11              Penny   Zack        R
S04E<13             Leonard "4 girls"   R
S04E13              Penny   Leonard     S
S04E15              Leonard Mrs Latham  D
S04E15              Leonard Mrs Latham  S
S04E16              Leonard Priya       D
S04E16-S04E24       Leonard Priya       R
S04E24              Raj     Penny       S