Family

Family · Kinship
Siblings · Cousin
Marriage
Husband · Wife

Friendship (romantic)
Significant other
Boyfriend · Girlfriend

Casual · Cohabitation
Same-sex relationship
Sexual partner

Monogamy · Non-monogamy
Open marriage · Polyamory
Polyfidelity · Polygamy

Cicisbeo · Concubinage
Courtesan · Mistress

Activities

Bonding · Courtship
Dating · Mating
Meet market · Romance
Singles event · Wedding

Ending of

Breakup · Divorce
Separation · Widowhood

Emotions

Affinity · Attachment
Compersion · Intimacy
Jealousy · Limerence
Love · Passion
Platonic love
Unconditional love

Human practices

Bride price (Dower · Dowry)
Hypergamy · Infidelity
Sexual activity · Transgression
Repression

Abuse

Child · Dating
Domestic · Elderly